| ZIP Codes: | 13 ZIP Codes (7 Standard, 6 PO Box, 0 Unique) [See All] |
| Area Codes: | 272 / 570 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:30 PM |
| Population: | 35,535 [See All] |
| FIPS: | 42035 |
| CBSA: | Lock Haven, PA |
| Land Area: | 864 sq mi |
| Water Area: | 9 sq mi |
| Coordinates: | 41.1805, -77.5372 |
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35,535 residents live across 13 ZIPs covering 864 sq mi, served by 13 distinct USPS-recognized cities.
Population moved from 37,741 to 35,535 from 2014 to 2024 — a -5.8% change. 5 ZIPs gained residents, 7 lost.
The county's wealthiest ZIP 17750 (Mackeyville , $147,723 median) and poorest ZIP 17764 (Renovo, $41,173) are 26.2 miles apart — a 3.6× income gap across local geography.
Median home values vary 2.6× across this county — from $83,800 in 17764 (Renovo) to $215,100 in 17751 (Mill Hall).
Density varies 332× across the county — from 7 people/sq mi in 17760 (North Bend) to 2,310 in 17721 (Avis).
Educational attainment ranges from 10.0% bachelor's+ in 17764 (Renovo) to 26.7% in 17760 (North Bend) — the breadth of educational profiles across the area.
Within Pennsylvania, this is the #57 most populous of 67 counties and ranks #34 for median household income .
Weighted by population, the typical household earns about $63,430 across the county — reflecting what a typical resident sees, not a simple ZIP average.
21.7% of adults age 25+ hold a bachelor's degree or higher (5,097 of 23,511 reporting).
7 Standard delivery, 6 PO Box only, 0 single-entity Unique ZIPs serve this county.
Median household income spans 3.6× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
Clinton County lost 5.8% of residents between 2014 and 2024. ZIPs that shed the largest share:
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 17745 | Lock Haven | Standard | 17,718 | $58,555 | 197.1 | -8.8% |
| 17751 | Mill Hall | Standard | 7,431 | $75,072 | 145.3 | -1.9% |
| 17747 | Loganton | Standard | 3,421 | $71,731 | 114.1 | 4.5% |
| 17764 | Renovo | Standard | 2,361 | $41,173 | 164.3 | 10.2% |
| 16822 | Beech Creek | Standard | 1,784 | $71,635 | 77.8 | -11.6% |
| 17721 | Avis | PO Box | 1,419 | $59,073 | 0.6 | -19.6% |
| 17760 | North Bend | Standard | 572 | $66,528 | 82.3 | -10.1% |
| 16848 | Lamar | PO Box | 215 | $62,321 | 0.2 | -43.4% |
| 17748 | Mc Elhattan | PO Box | 184 | $70,417 | 0.0 | -11.5% |
| 17779 | Woolrich | PO Box | 179 | $54,311 | 0.0 | 45.5% |
| 17750 | Mackeyville | PO Box | 177 | $147,723 | 0.0 | 38.3% |
| 17778 | Westport | Standard | 74 | $56,250 | 82.6 | 8.8% |
| 17726 | Castanea | PO Box | — | — | 0.0 | — |