Erie County, Pennsylvania

Erie County, Pennsylvania
Location within the U.S. state of Pennsylvania
Coordinates: 42°06′N 80°06′W / 42.1°N 80.1°W / 42.1; -80.1
Country United States
State Pennsylvania
FoundedNovember 7, 1803
Named afterErie people
SeatErie
Largest cityErie
Government
 • County ExecutiveChristina Vogel (D)
Area
 • Total
1,558 sq mi (4,040 km2)
 • Land799 sq mi (2,070 km2)
 • Water759 sq mi (1,970 km2)  49%
Population
 (2020)
 • Total
270,876
 • Estimate 
(2024)[1]
267,750
 • Density339.1/sq mi (130.9/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district16th
Websiteeriecountypa.gov

Erie County is the northernmost county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 270,876.[2] Its county seat is Erie.[3] The county was created in 1800 and later organized in 1803.[4] The county is part of the Northwest region of the commonwealth.[a]

History

The federal government resolved competing claims over the Erie Triangle in 1792, allowing Pennsylvania to purchase the land. Before the resolution, both New York and Pennsylvania had claimed the territory, preventing the formation of county boundaries. On March 12, 1800, Pennsylvania established Erie County from a portion of Allegheny County, which had absorbed the Erie Triangle following the acquisition. Other states attempted to claim the region, but Pennsylvania ultimately secured the area through formal cession.[5]

Because Erie County and its neighboring counties—Crawford, Mercer, Venango, and Warren—initially lacked the population and resources to sustain independent governments, state officials established a temporary five-county administrative unit based in Meadville, Crawford County, to manage regional affairs. Erie County elected its first local officials in 1803.[6] A fire destroyed the Erie County Courthouse on March 23, 1823, erasing all county records accumulated up to that date.[7]

Immigrants of "Yankee" stock—descendants of English Puritans who originally settled New England—first settled Erie County. These early settlers primarily came from Connecticut, Rhode Island, and Maine, often via Upstate New York. They made Erie County culturally similar to New England rather than to the rest of Pennsylvania.[8] They laid out roads, established post routes, constructed public buildings, and encouraged further migration. Many settlers from upstate New York had only recently relocated there from New England following the American Revolutionary War, creating a strong cultural continuity with early New England.

Erie County was part of the Underground Railroad, giving slaves the ability to gain freedom through Lake Erie into Canada, East through New York State, or to stay in Erie with the help of abolitionists and the free black community.[9]

Geography

According to the U.S. Census Bureau, the county has a total area of 1,558 square miles (4,040 km2), of which 799 square miles (2,070 km2) is land and 759 square miles (1,970 km2) (49%) is water.[10] It is the largest county in Pennsylvania by total area. Except for a high ridge several miles from the lake, running nearly parallel to its shore, the terrain is generally rolling and well-watered.[11] It is the only county in the state that occupies a significant amount of land north of the 42nd parallel.

There are two cities in Erie County: Erie and Corry. Other notable population centers include Millcreek, Harborcreek, Summit, and Fairview townships, as well as the boroughs of Edinboro, North East, Girard, Waterford, and Union City. Erie County is bordered on the northeast by Chautauqua County, New York, on the east by Warren County, on the south by Crawford County, and on the west by Ashtabula County, Ohio. Directly north of the county is Lake Erie. Erie County occupies a position on Lake Erie that makes it the only county in Pennsylvania to share a border with Canada, located across the lake on the far shore.

Most of the county has a warm-summer humid continental climate (Dfb), except at lower elevations near enough to the lake, where a hot-summer humid continental climate (Dfa) exists. Average monthly temperatures in downtown Erie range from 26.4 °F in January to 70.8 °F in July, while in Corry, they range from 23.8 °F in January to 68.2 °F in July.[12] The hardiness zone in most of Erie County by area is 6a. It has warmed to 7a along the Lake, and the area between the shore and a line a little south of Interstate 90 is 6b. [1]

Because of its location in the northwesternmost part of the state, Erie County is the only county to border both New York and Ohio. It is also the only county in the state on the Canadian border.

Adjacent counties

Major highways

Demographics

Historical population
CensusPop.Note
18001,468
18103,758156.0%
18208,553127.6%
183017,04199.2%
184031,34483.9%
185038,74223.6%
186049,43227.6%
187065,97333.5%
188074,68813.2%
189086,07415.2%
190098,47314.4%
1910115,51717.3%
1920153,53632.9%
1930175,27714.2%
1940180,8893.2%
1950219,38821.3%
1960250,68214.3%
1970263,6545.2%
1980279,7806.1%
1990275,572−1.5%
2000280,8451.9%
2010280,566−0.1%
2020270,876−3.5%
2023 (est.)267,571[13]−1.2%
[14]

2020 census

As of the 2020 census, Erie County had a population of 270,876, with 109,371 households and 66,504 families. The median age was 40.6 years; 20.9% of residents were under the age of 18 and 19.0% were 65 years of age or older. For every 100 females there were 97.7 males, and for every 100 females age 18 and over there were 96.1 males age 18 and over.[15]

Of the 109,371 households, 26.8% had children under the age of 18 living in them. Of all households, 42.7% were married-couple households, 20.5% were households with a male householder and no spouse or partner present, and 29.0% were households with a female householder and no spouse or partner present. About 31.3% of all households were made up of individuals and 13.3% had someone living alone who was 65 years of age or older.[15]

There were 119,791 housing units, of which 8.7% were vacant. Among occupied housing units, 65.8% were owner-occupied and 34.2% were renter-occupied. The homeowner vacancy rate was 1.3% and the rental vacancy rate was 8.5%.[15]

76.0% of residents lived in urban areas, while 24.0% lived in rural areas.[16]

The racial makeup of the county was 82.2% White, 7.6% Black or African American, 0.2% American Indian and Alaska Native, 2.4% Asian, <0.1% Native Hawaiian and Pacific Islander, 1.7% from some other race, and 5.9% from two or more races. Hispanic or Latino residents of any race comprised 4.4% of the population.[17]

Erie County, Pennsylvania – Racial and ethnic composition
Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.
Race / Ethnicity (NH = Non-Hispanic) Pop 2000[18] Pop 2010[19] Pop 2020[20] % 2000 % 2010 % 2020
White alone (NH) 252,258 242,787 219,180 89.82% 86.53% 80.91%
Black or African American alone (NH) 16,876 19,485 19,821 6.00% 6.94% 7.31%
Native American or Alaska Native alone (NH) 396 447 343 0.14% 0.15% 0.12%
Asian alone (NH) 1,902 3,036 6,358 0.67% 1.08% 2.34%
Pacific Islander alone (NH) 56 72 58 0.01% 0.02% 0.02%
Other race alone (NH) 320 292 1,046 0.11% 0.10% 0.38%
Mixed race or Multiracial (NH) 2,909 4,929 12,040 1.03% 1.75% 4.44%
Hispanic or Latino (any race) 6,126 9,518 12,030 2.18% 3.39% 4.44%
Total 280,843 280,566 270,876 100.00% 100.00% 100.00%

American Community Survey estimates

Ancestry data, based on American Community Survey estimates, indicated that approximately 24 percent of residents were of German descent, 12.5 percent Polish, 12.3 percent Italian, 10.1 percent Irish, 6.5 percent English, and 6.4 percent identified as having "American" ancestry.[21][22]

Metropolitan Statistical Area

The United States Office of Management and Budget[23] has designated Erie County as the Erie, PA Metropolitan Statistical Area (MSA). As of the 2010 U.S. census[24] the metropolitan area ranked 11th-most populous in Pennsylvania and the 164th-most populous in the United States with a population of 280,566.

Erie County is part of the larger Erie-Meadville, PA Combined Statistical Area (CSA), which combines the populations of Erie County as well as Crawford County to the south. The Combined Statistical Area ranked seventh in Pennsylvania and 102nd-most populous in the United States with a population of 369,331.

Largest populations in Erie County

2023 rank City Type 2023 estimate 2020 Census Change Highest Population (Year)
1 Erie City 92,957 94,852 −2.00% 138,440 (1960)
2 Millcreek Township 53,101 54,070 −1.79% 54,256 (2013)
3 Harborcreek Township 16,580 16,630 −0.30% 17,629 (2014)
4 Fairview Township 11,270 11,139 +1.18% 11,270 (2023)
5 Summit Township 7,273 7,339 −0.90% 7,339 (2020)
6 North East Township 6,439 6,529 −1.38% 7,702 (2000)
7 Corry City 6,075 6,208 −2.14% 7,911 (1950)
8 Edinboro Borough 5,821 4,963 +17.29% 7,736 (1990)

Government and politics

Before 1960, Erie County was primarily Republican in presidential elections, only backing Democratic Party candidates in four elections from 1888 to 1956. Since 1960, the county has become primarily Democratic, with only five Republican wins in presidential elections from 1960 to the present. Nevertheless, since the 2016 presidential election, the county has become increasingly competitive, with Donald Trump narrowly winning the county that year, followed by Joe Biden narrowly flipping the county in 2020. Most recently, Trump reclaimed it in 2024.[25] Since 1992, the county has voted for the statewide winner in presidential elections, and has done so in all but one since 1948.

United States presidential election results for Erie County, Pennsylvania[26][27]
Year Republican Democratic Third party(ies)
No.  % No.  % No.  %
1880 8,752 55.12% 6,471 40.76% 654 4.12%
1884 9,230 54.77% 6,725 39.91% 896 5.32%
1888 9,372 54.23% 7,111 41.15% 798 4.62%
1892 8,918 49.76% 7,589 42.34% 1,416 7.90%
1896 11,819 54.74% 9,210 42.65% 563 2.61%
1900 11,816 58.47% 7,281 36.03% 1,110 5.49%
1904 11,951 62.84% 5,119 26.92% 1,948 10.24%
1908 10,828 55.76% 6,173 31.79% 2,418 12.45%
1912 4,958 26.93% 5,633 30.60% 7,817 42.47%
1916 8,933 43.30% 9,641 46.73% 2,056 9.97%
1920 19,465 63.68% 6,311 20.65% 4,793 15.68%
1924 19,480 61.29% 3,502 11.02% 8,802 27.69%
1928 30,542 60.97% 19,278 38.48% 277 0.55%
1932 18,371 45.43% 19,592 48.44% 2,479 6.13%
1936 25,607 39.18% 33,042 50.56% 6,706 10.26%
1940 36,608 53.28% 31,735 46.18% 371 0.54%
1944 35,247 51.40% 32,912 47.99% 419 0.61%
1948 33,806 53.45% 28,159 44.52% 1,280 2.02%
1952 48,836 56.89% 36,619 42.66% 391 0.46%
1956 54,430 61.46% 33,802 38.17% 323 0.36%
1960 51,525 48.82% 53,723 50.90% 295 0.28%
1964 31,393 29.93% 72,944 69.55% 549 0.52%
1968 43,134 43.20% 51,604 51.68% 5,109 5.12%
1972 61,542 58.22% 42,022 39.75% 2,149 2.03%
1976 49,641 46.20% 55,385 51.55% 2,413 2.25%
1980 48,918 47.42% 45,946 44.54% 8,298 8.04%
1984 55,860 51.12% 52,471 48.02% 935 0.86%
1988 48,306 46.76% 53,913 52.19% 1,081 1.05%
1992 39,283 33.35% 56,381 47.86% 22,140 18.79%
1996 39,884 36.66% 57,508 52.86% 11,399 10.48%
2000 49,027 43.64% 59,399 52.88% 3,909 3.48%
2004 57,372 45.57% 67,921 53.95% 605 0.48%
2008 50,351 39.25% 75,775 59.07% 2,145 1.67%
2012 49,025 41.16% 68,036 57.12% 2,053 1.72%
2016 60,069 48.01% 58,112 46.44% 6,948 5.55%
2020 66,869 48.63% 68,286 49.66% 2,339 1.70%
2024 68,866 49.91% 67,456 48.89% 1,657 1.20%
United States Senate election results for Erie County, Pennsylvania1[28]
Year Republican Democratic Third party(ies)
No.  % No.  % No.  %
2006 34,757 40.60% 50,857 59.40% 0 0.00%
2012 45,888 41.26% 62,602 56.29% 2,721 2.45%
2018 40,348 39.99% 58,906 58.39% 1,635 1.62%
2024 65,603 47.94% 67,868 49.60% 3,371 2.46%
United States Senate election results for Erie County, Pennsylvania3
Year Republican Democratic Third party(ies)
No.  % No.  % No.  %
2010 37,698 45.01% 46,054 54.99% 0 0.00%
2016 56,846 46.32% 60,948 49.66% 4,930 4.02%
2022 46,507 43.98% 56,404 53.35% 2,823 2.67%
Pennsylvania Gubernatorial election results for Erie County
Year Republican Democratic Third party(ies)
No.  % No.  % No.  %
2014 30,389 41.91% 42,115 58.09% 0 0.00%
2018 39,387 38.72% 60,790 59.77% 1,534 1.51%
2022 40,433 38.29% 63,081 59.74% 2,085 1.97%

The county seat of government is in Erie. Erie County operates under a home-rule charter and elects a county executive to manage its government. The current County Executive is Christina Vogel. Vogel assumed the office on January 5, 2026, following the defeat of Brenton Davis. The remaining elected officials of the executive branch are the Erie County Controller, Erie County Coroner, Erie County District Attorney, Erie County Sheriff, and Erie County Clerk of Records. see latest list

Erie County Executives
Name Party Term start Term end
Russell Robison Republican 1978 1982
Judith M. Lynch Democratic 1982 2002
Richard Schenker Republican 2002 2006
Mark A. DiVecchio Democratic 2006 2010
Barry Grossman Democratic 2010 2014
Kathleen Dahlkemper Democratic 2014 2022
Brenton Davis Republican 2022 2026
Christina Vogel Democratic 2026 Incumbent

Row officers

Office Holder Party
County Executive Christina Vogel Democrat
Clerk of Records Aubrea Hagerty-Haynes Democratic
Controller Dr. Kyle Foust Democratic
Coroner Lyell Cook Republican
District Attorney Elizabeth Hirz Republican
Sheriff Chris Campanelli Democratic

Judiciary

Nine judges serve on the Erie County Court of Common Pleas, and fifteen magisterial district judges preside over the county's district courts. A district court administrator, along with a deputy and an assistant court administrator, manages court operations. Erie County maintains its courthouse near Perry Square in downtown Erie, operates a county prison, and oversees a combined 911/Emergency Management Agency through the Erie County Department of Public Safety in Summit Township.

Politics

As of June 30, 2025, there are 169,450 registered voters in Erie County.

Voter Registration Statistics in Erie County, Pennsylvania (as of Feb 9, 2026)
Party- Registered Voters
Democratic 76,586
Republican 71,063
Independent / No Affiliation 20,509

The county is considered a bellwether politically.[29]

State Senate

Senator Party District
Dan Laughlin Republican Pennsylvania's 49th Senatorial District
Scott Hutchinson Republican Pennsylvania's 21st Senatorial District

State House of Representatives

Representative Party District
Patrick J. Harkins Democratic Pennsylvania's 1st Representative District
Robert Merski Democratic Pennsylvania's 2nd Representative District
Ryan Bizzarro Democratic Pennsylvania's 3rd Representative District
Jake Banta Republican Pennsylvania's 4th Representative District
Brad Roae Republican Pennsylvania's 6th Representative District

United States Senate

Senator Party
John Fetterman Democratic
Dave McCormick Republican

United States House of Representatives

Representative Party District
Mike Kelly Republican Pennsylvania's 16th congressional district

Education

Public school districts

School districts include:[30]

Approved private schools

Community College

After years of advocacy on the issue, the Erie County Council approved sponsorship of the Erie County Community College on June 28, 2017. Council Chairman Jay Breneman and colleagues Andre Horton, Kathy Fatica, and Fiore Leone voted in favor of sponsoring the community college, which County Executive Kathy Dahlkemper later signed. The County Executive's administration took the lead in presenting the proposal to the Pennsylvania State Board of Education for approval, supported by a cross-section of business, civic, labor, and community leaders.[31][32]

Recreation

There are two Pennsylvania state parks in Erie County, and both are on the shores of Lake Erie.

Recreation

Annual events

Libraries

The Erie County library system operates the foremost public library in Erie, comprising five branches and a bookmobile.[34] In 1996, the county opened the Raymond M. Blasco, M. D. Memorial Library, named for its benefactor.[35] Now called the Main Library or the Erie County Public Library, it ranks as the third-largest library in Pennsylvania.[36] The library relocated from downtown Erie to the bayfront as part of a redevelopment initiative that also introduced the Erie Maritime Museum, Bayfront Convention Center, and Bicentennial Tower on Dobbins Landing. The Main Library features waterfront views of Presque Isle Bay and frequently overlooks the historic U.S. Brig Niagara docked nearby. This relocation, completed approximately 25 years ago, helped revitalize Erie's waterfront, which had remained underdeveloped before the project.[37]

The second floor of the Main Library is home to an art collection, containing historic pieces like Summer Afternoon, Isle of Shoals by Frederick Childe Hassam. The display also features several local artists.[37] The library works with the International Institute of Erie (IIE) to offer tours of the library, a collection of foreign-language books, and other practical information about immigration processes.[37] The library also provides a heritage room where one can conduct genealogy research concerning their ancestors who resided in Erie County or Northwest Pennsylvania.[38]

The four remaining libraries within the Erie County library system are the Edinboro Branch Library, Iroquois Avenue Branch Library, Lincoln Community Center Branch Library, and Millcreek Branch Library.[34] The other public libraries of Erie County include the Albion Area Public Library, Corry Public Library, McCord Memorial Library, Rice Avenue Public Library, Union City Public Library, and Waterford Public Library.[39]

Communities

Under Pennsylvania law, there are four types of incorporated municipalities: cities, boroughs, townships, and, in at most two cases, towns. There are 38 incorporated municipalities in Erie County, including 2 cities, 14 boroughs, and 22 townships. Erie County includes the following cities, boroughs, and townships:

Cities

Boroughs

Townships

Census-designated places

Census-designated places are geographical areas designated by the U.S. Census Bureau for the purposes of compiling demographic data. They are not actual jurisdictions under Pennsylvania law. Other unincorporated communities, such as villages, may also be listed here.

Population ranking

The 2010 United States census ranked the population of the following municipalities in Erie County as follows.[24]

county seat

Rank City/Town/etc. Municipal type Population (2010 Census)
1 Erie City 101,786
2 Northwest Harborcreek CDP 8,949
3 Corry City 6,605
4 Edinboro Borough 6,438
5 North East Borough 4,294
6 Lawrence Park CDP 3,982
7 Wesleyville Borough 3,341
8 Union City Borough 3,320
9 Girard Borough 3,104
10 Lake City Borough 3,031
11 Fairview CDP 2,348
12 Penn State Erie (Behrend) CDP 1,629
13 Waterford Borough 1,517
14 Albion Borough 1,516
15 Avonia CDP 1,205
16 Cranesville Borough 638
17 Platea Borough 430
18 Mill Village Borough 412
19 Wattsburg Borough 403
20 McKean Borough 388
21 Elgin Borough 218

See also

References

  1. ^ Includes Erie, Mercer, Crawford, and Venango Counties
  1. ^ "Erie County, Pennsylvania". Census.gov. Retrieved January 20, 2026.
  2. ^ "2020 Population and Housing State Data". United States Census Bureau. Retrieved August 13, 2021.
  3. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  4. ^ "Pennsylvania: Individual County Chronologies". Pennsylvania Atlas of Historical County Boundaries. The Newberry Library. 2008. Archived from the original on March 25, 2015. Retrieved March 12, 2015.
  5. ^ "State and County Maps of Pennsylvania". Archived from the original on February 18, 2013. Retrieved May 31, 2012.
  6. ^ Whitman, Benjamin; et al. (1884). "Part II, Chapter I". History of Erie County, Pennsylvania: Containing a History of the County, Its Townships, Towns, Villages, Schools, Churches, Industries, Etc. Vol. 1. Erie, Pennsylvania: Warner, Beers and Company. p. 137.
  7. ^ Whitman, Benjamin; et al. (1884). "Chapter XVII County Buildings". History of Erie County, Pennsylvania: Containing a History of the County, Its Townships, Towns, Villages, Schools, Churches, Industries, Etc. Vol. 1. Erie, Pennsylvania: Warner, Beers and Company. p. 283.
  8. ^ Rosenberry, Lois Kimball Mathews (1909). The Expansion of New England: The Spread of New England Settlement and Institutions to the Mississippi River, 1620–1865. Boston: Houghton Mifflin. p. 151.
  9. ^ Meyer, Melinda.Journey to Freedom National Park Service. Erie County Historical Society. November 17, 2010. http://www.nps.gov. (December 6, 2012)
  10. ^ "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Retrieved March 5, 2015.
  11. ^ "Erie. II. A county of Pennsylvania" . Encyclopedia Americana. 1920.
  12. ^ "PRISM Climate Group at Oregon State University".
  13. ^ "2023 Population Estimates (PEP)". United States Census Bureau. Retrieved February 22, 2026.
  14. ^ "Census 2020".
  15. ^ a b c "2020 Decennial Census Demographic Profile (DP1)". United States Census Bureau. 2021. Retrieved December 26, 2025.
  16. ^ "2020 Decennial Census Demographic and Housing Characteristics (DHC)". United States Census Bureau. 2023. Retrieved December 26, 2025.
  17. ^ "2020 Decennial Census Redistricting Data (Public Law 94-171)". United States Census Bureau. 2021. Retrieved December 26, 2025.
  18. ^ "P004: Hispanic or Latino, and Not Hispanic or Latino by Race – 2000: DEC Summary File 1 – Erie County, Pennsylvania". United States Census Bureau.
  19. ^ "P2 Hispanic or Latino, and Not Hispanic or Latino by Race – 2010: DEC Redistricting Data (PL 94-171) - Erie County, Pennsylvania". United States Census Bureau.
  20. ^ "P2 Hispanic or Latino, and Not Hispanic or Latino by Race – 2020: DEC Redistricting Data (PL 94-171) - Erie County, Pennsylvania". United States Census Bureau.
  21. ^ "Erie County, Pennsylvania Population 2020 Census". United States Census Bureau. Retrieved July 23, 2025.
  22. ^ "Erie County, PA Demographic Statistics". Census Dots. Retrieved July 23, 2025.
  23. ^ "Office of Management and Budget". February 7, 2017.
  24. ^ a b "2010 Census". Archived from the original on December 6, 2013. Retrieved May 25, 2014.
  25. ^ "Pivot Counties in Pennsylvania", ballotpedia.org, retrieved September 19, 2024
  26. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org.
  27. ^ The leading "other" candidate, Progressive Theodore Roosevelt, received 5,019 votes, while Socialist candidate Eugene Debs received 1,972 votes, Prohibition candidate Eugene Chafin received 800 votes, and Socialist Labor candidate Arthur Reimer received 26 votes.
  28. ^ "2024 Senate Election (Official Returns)". Commonwealth of Pennsylvania by county. November 5, 2024. Retrieved December 5, 2024.
  29. ^ David Wasserman (October 6, 2020), "The 10 Bellwether Counties That Show How Trump Is in Serious Trouble", The New York Times
  30. ^ Geography Division (January 14, 2021). 2020 CENSUS - SCHOOL DISTRICT REFERENCE MAP: Erie County, PA (PDF) (Map). U.S. Census Bureau. Retrieved September 6, 2025. - Text list
  31. ^ Erie County Council approves community college sponsorship
  32. ^ "Community College Proposal". Archived from the original on November 14, 2019. Retrieved November 14, 2019.
  33. ^ Pennsylvania Department of Community and Economic Development, Presque Isle State Park: Tranquility Found. Retrieved May 8, 2014.
  34. ^ a b "Facilities – Erie County Public Library". September 2, 2010.
  35. ^ "History of the Library – Erie County Public Library". September 2, 2010.
  36. ^ "Facts". www.ci.erie.pa.us. Archived from the original on August 8, 2007. Retrieved January 11, 2022.
  37. ^ a b c "This Seaport is Now a Library, but It's Still a Portal to the World". The Atlantic. September 5, 2016.
  38. ^ "Genealogy – Heritage Room at Blasco – Erie County Public Library". January 6, 2011.
  39. ^ "Public Libraries of Erie County".

42°06′N 80°06′W / 42.10°N 80.10°W / 42.10; -80.10