| ZIP Codes: | 3 ZIP Codes (1 Standard, 1 PO Box, 1 Unique) [See All] |
| Area Codes: | 272 / 570 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:32 PM |
| Population: | 18,887 [See All] |
| FIPS: | 42093 |
| CBSA: | Sunbury, PA |
| Land Area: | 136 sq mi |
| Water Area: | 3 sq mi |
| Coordinates: | 41.0085, -76.6440 |
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18,887 residents live across 3 ZIPs covering 136 sq mi, served by 2 distinct USPS-recognized cities.
Population moved from 18,738 to 18,887 from 2014 to 2024 — a +0.8% change. 3 ZIPs gained residents, 0 lost.
The county's wealthiest ZIP 17821 (Danville, $76,971 median) and poorest ZIP 17884 (Washingtonville, $55,909) are 3.5 miles apart — a 1.4× income gap across local geography.
Median home values vary 1.5× across this county — from $170,000 in 17884 (Washingtonville) to $249,500 in 17821 (Danville).
Density varies 99× across the county — from 137 people/sq mi in 17821 (Danville) to 13,487 in 17884 (Washingtonville).
Educational attainment ranges from 15.6% bachelor's+ in 17884 (Washingtonville) to 39.1% in 17821 (Danville) — the breadth of educational profiles across the area.
Within Pennsylvania, this is the #62 most populous of 67 counties and ranks #45 for median household income .
Hosts 1 single-entity Unique ZIP: 17822Geisinger Medical Center .
Weighted by population, the typical household earns about $76,678 across the county — reflecting what a typical resident sees, not a simple ZIP average.
38.8% of adults age 25+ hold a bachelor's degree or higher (5,404 of 13,910 reporting).
1 Standard delivery, 1 PO Box only, 1 single-entity Unique ZIPs serve this county.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.