41°14′N 77°38′W / 41.24°N 77.64°W / 41.24; -77.64

Clinton County
County
Clinton County Courthouse
Flag Seal Logo
Motto(s):  Where Rivers and Valleys meet Mountains ands Sunsets
Location within the U.S. state of Pennsylvania
Pennsylvania's location within the U.S.
Coordinates: 41°14′N 77°38′W / 41.24°N 77.64°W / 41.24; -77.64
Country	United States
State	Pennsylvania
Founded	June 21, 1839
Named for	DeWitt Clinton
Seat	Lock Haven
Largest city	Lock Haven
Area
• Total	897 sq mi (2,320 km)
• Land	888 sq mi (2,300 km)
• Water	8.9 sq mi (23 km)  1.0%
Population  (2020)
• Total	37,450
• Estimate  (2022)	37,931
• Density	42/sq mi (16/km)
Time zone	UTC−5 (Eastern)
• Summer (DST)	UTC−4 (EDT)
Congressional district	15th
Website	www.clintoncountypa.com
Pennsylvania Historical Marker
Designated	June 12, 1982

Clinton County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 37,450. Its county seat is Lock Haven. Clinton County comprises the Lock Haven, PA Micropolitan Statistical Area, which is also included in the Williamsport-Lock Haven, PA Combined Statistical Area. The county is part of the Central Pennsylvania region of the commonwealth.

In the Treaty of Fort Stanwix of 1768, new lands in Pennsylvania were purchased from the Haudenosaunee for colonial settlement, including parts of what is now Clinton County. The land was formally associated with Northumberland County, but a group of organized settlers near modern Jersey Shore elected three commissioners each March who were responsible for seeing that everyone was dealt with fairly. This became known as the Fairplay System. Most of the rulings seem to have dealt with property issues, but they dealt with any legal or criminal cases in their area. They granted permission for new settlers to enter the area, could take away a settler's land claim if they were absent more than six weeks (except for military service), and could expel a person (by setting them adrift in a canoe on the river). The county was created on June 21, 1839, from parts of Centre and Lycoming Counties.

The county name is in honor of the sixth Governor of New York, DeWitt Clinton. Some alternate sources suggest the namesake is Henry Clinton.

According to the U.S. Census Bureau, the county has a total area of 897 square miles (2,320 km), of which 888 square miles (2,300 km) is land and 8.9 square miles (23 km) (1.0%) is water. The county has a humid continental climate which is warm-summer (Dfb) except in lower areas near the West Branch and the Bald Eagle Creek which are hot-summer (Dfa). Average monthly temperatures in Lock Haven range from 26.5 °F in January to 72.2 °F in July, while in Renovo they range from 25.6 °F in January to 71.0 °F in July.

• Potter County (north)
• Lycoming County (east)
• Union County (southeast)
• Centre County (south)
• Clearfield County (southwest)
• Cameron County (west)

• Bear Mountain - a USGS GNIS registered mountain peak (Bear Mountain: summit type feature at 41°00′34″N 077°26′02″W / 41.00944°N 77.43389°W / 41.00944; -77.43389) on the "Mill Hall" topographic map

• I-80
• Future I-99
• US 220
• PA 64
• PA 120
• PA 144
• PA 150
• PA 477
• PA 664
• PA 880

Historical population

Census	Pop.	Note	%±
1840	8,323		—
1850	11,207		34.7%
1860	17,723		58.1%
1870	23,211		31.0%
1880	26,278		13.2%
1890	28,685		9.2%
1900	29,197		1.8%
1910	31,545		8.0%
1920	33,555		6.4%
1930	32,319		−3.7%
1940	34,557		6.9%
1950	36,532		5.7%
1960	37,619		3.0%
1970	37,721		0.3%
1980	38,971		3.3%
1990	37,182		−4.6%
2000	37,910		2.0%
2010	39,238		3.5%
2020	37,450		−4.6%
2022 (est.)	37,931		1.3%

As of the census of 2000, there were 37,914 people, 14,773 households, and 9,927 families residing in the county. The population density was 43 people per square mile (17 people/km). There were 18,166 housing units at an average density of 20 per square mile (7.7/km). The racial makeup of the county was 98.3% White, 0.52% Black or African American, 0.1% Native American, 0.4% Asian, <0.1% Pacific Islander, 0.2% from other races, and 0.5% from two or more races. 0.5% of the population were Hispanic or Latino of any race. 36.0% were of German, 15.6% American, 9.6% Irish, 8.6% Italian and 7.4% English ancestry.

There were 14,773 households, out of which 27.7% had children under the age of 18 living with them, 54.0% were married couples living together, 9.4% had a female householder with no husband present, and 32.8% were non-families. 26.6% of all households were made up of individuals, and 13.6% had someone living alone who was 65 years of age or older. The average household size was 2.42 and the average family size was 2.90.

In the county, the population was spread out, with 21.5% under the age of 18, 13.6% from 18 to 24, 25.5% from 25 to 44, 22.7% from 45 to 64, and 16.8% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 94.20 males. For every 100 females age 18 and over, there were 91.20 males.

Clinton County Racial Composition

Race	Num.	Perc.
White (NH)	34,933	93.27%
Black or African American (NH)	416	1.11%
Native American (NH)	51	0.14%
Asian (NH)	211	0.56%
Pacific Islander (NH)	7	0.02%
Other/Mixed (NH)	1,170	3.12%
Hispanic or Latino	662	1.76%

The United States Office of Management and Budget has designated Clinton County as the Lock Haven, PA Micropolitan Statistical Area (μSA). As of the 2010 U.S. Census the micropolitan area ranked 16th most populous in the State of Pennsylvania and the 315th most populous in the United States with a population of 39,238. Clinton County is also a part of the Williamsport-Lock Haven, PA Combined Statistical Area (CSA), which combines the population of both Clinton County and the Lycoming County areas. The Combined Statistical Area ranked 11th in the State of Pennsylvania and 143rd most populous in the United States with a population of 155,349.

United States presidential election results for Clinton County, Pennsylvania

Year	Republican		Democratic		Third party(ies)
	No.	%	No.	%	No.	%
2020	11,902	67.39%	5,502	31.15%	257	1.46%
2016	10,022	64.64%	4,744	30.60%	739	4.77%
2012	7,303	54.86%	5,734	43.08%	274	2.06%
2008	7,504	50.73%	7,097	47.98%	190	1.28%
2004	8,035	57.53%	5,823	41.69%	109	0.78%
2000	6,064	50.56%	5,521	46.03%	409	3.41%
1996	4,293	37.39%	5,658	49.27%	1,532	13.34%
1992	4,471	35.57%	5,397	42.94%	2,701	21.49%
1988	5,735	49.38%	5,759	49.59%	119	1.02%
1984	6,678	59.24%	4,525	40.14%	70	0.62%
1980	6,288	52.36%	4,842	40.32%	880	7.33%
1976	5,858	46.63%	6,532	51.99%	174	1.38%
1972	8,205	62.54%	4,772	36.37%	142	1.08%
1968	6,563	48.59%	6,301	46.65%	644	4.77%
1964	4,298	29.91%	10,038	69.84%	36	0.25%
1960	9,184	60.58%	5,965	39.34%	12	0.08%
1956	8,250	60.32%	5,411	39.56%	17	0.12%
1952	8,125	58.29%	5,758	41.31%	55	0.39%
1948	5,618	52.85%	5,013	47.15%	0	0.00%
1944	5,915	50.66%	5,703	48.85%	57	0.49%
1940	6,291	45.80%	7,419	54.01%	26	0.19%
1936	6,479	43.28%	8,351	55.79%	139	0.93%
1932	4,851	54.54%	3,741	42.06%	302	3.40%
1928	8,120	73.62%	2,849	25.83%	60	0.54%
1924	5,129	54.62%	1,939	20.65%	2,323	24.74%
1920	4,303	54.58%	2,976	37.75%	605	7.67%
1916	2,794	45.14%	2,967	47.93%	429	6.93%
1912	1,214	20.12%	2,200	36.45%	2,621	43.43%
1908	3,477	54.54%	2,547	39.95%	351	5.51%
1904	3,535	61.36%	1,941	33.69%	285	4.95%
1900	3,157	50.58%	2,879	46.13%	205	3.28%
1896	3,486	51.23%	3,053	44.87%	265	3.89%
1892	2,572	43.91%	3,075	52.49%	211	3.60%
1888	2,756	45.38%	3,204	52.76%	113	1.86%

While Clinton County has historically been Republican like the rest of central Pennsylvania, Democrats captured the registration edge in early 2008. Each of the three row-office statewide winners carried Clinton in 2008. In 2006, Democrat Bob Casey Jr. received 54% of its vote when he unseated incumbent Republican US Senator Rick Santorum and Ed Rendell received 56% of the vote against Lynn Swann. The conservative tendencies of the county were again reestablished in 2008 when then-Senator Obama lost the county vote 48% to John McCain's 51%. This was followed in 2010 with U.S. Senate candidate, Republican Pat Toomey, receiving 59% to 41% for Democrat Joe Sestak. In 2012, Mitt Romney carried the county 55% to President Obama's 43%, while incumbent Democratic Senator Bob Casey, Jr. received 44% to his Republican challenger, Tom Smith's 53%.

As of February 6, 2024, there are 21,710 registered voters in Clinton County.

• Republican: 12,411 (57.17%)
• Democratic: 6,497 (29.93%)
• Independent: 2,015 (9.28%)
• Third Party: 787 (3.63%)

• Jim Russo, chairman, Republican
• Jeffrey Snyder, vice chairman, Republican
• Angela Harding, Democrat

• Chief Clerk, Desiree Meyers
• Clerk of Courts and Prothonotary, Cynthia Love, Republican
• District Attorney, David Strouse, Democrat
• Register of Wills, Jennifer Hoy, Republican
• Treasurer, Michelle Kunes, Republican
• Auditor, Jacqui Anastos, Republican
• Auditor, Michelle Crowell, Democrat
• Auditor, Cathy Gedon, Republican
• Sheriff, Kerry Stover, Democrat
• Coroner Zach Hanna, Democrat

District	Senator	Party
25	Cris Dush	Republican

District	Representative	Party
76	Stephanie Borowicz	Republican

District	Representative	Party
15	Glenn Thompson	Republican

Senator	Party
John Fetterman	Democratic
Bob Casey	Democratic

• Lock Haven University of Pennsylvania

• Jersey Shore Area School District (also in Lycoming County)
• Keystone Central School District (also in Centre County)
• West Branch Area School District (also in Clearfield County)

There are five Pennsylvania state parks in Clinton County.

• Bucktail State Park Natural Area is a 75-mile (121 km) scenic route along Pennsylvania Route 120 stretching from Lock Haven to Emporium in Cameron County.
• Hyner Run State Park
• Hyner View State Park
• Kettle Creek State Park
• Ravensburg State Park

Under Pennsylvania law, there are four types of incorporated municipalities: cities, boroughs, townships, and, in at most two cases, towns. The following cities, boroughs and townships are located in Clinton County:

• Lock Haven (county seat)

• Avis
• Beech Creek
• Flemington
• Loganton
• Mill Hall
• Renovo
• South Renovo

Census-designated places are unincorporated communities designated by the U.S. Census Bureau for the purposes of compiling demographic data. They are not actual jurisdictions under Pennsylvania law.

The population ranking of the following table is based on the 2020 census of Clinton County.

† county seat

Rank	City/Town/etc.	Municipal type	Population (2020 Census)
1	† Lock Haven	City	8,108
2	Mill Hall	Borough	1,479
3	Avis	Borough	1,473
4	Dunnstown	CDP	1,464
5	Flemington	Borough	1,271
6	McElhattan	CDP	1,224
7	Renovo	Borough	1,061
8	Castanea	CDP	1,047
9	Beech Creek	Borough	736
10	Rauchtown (partially in Lycoming County)	CDP	722
11	Lamar	CDP	561
12	Rote	CDP	488
13	Loganton	Borough	469
14	South Renovo	Borough	411

• National Register of Historic Places listings in Clinton County, Pennsylvania

• Clinton County Government Homepage
• Open Access edition of The History of Centre and Clinton counties, Pennsylvania (1883) by John Blair Linn at the Penn State University Library website