County ZIP codes · Pennsylvania · FIPS 42109
Snyder County, PA ZIP Codes
Snyder County, Pennsylvania has 19 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 15 residential and 4 for PO boxes or a single organization. 12 of the residential ones lie mainly in Snyder County and 3 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $61,875 in 17086 (Richfield) to $89,063 in 17889 (Winfield) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Snyder County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $63,269 and $75,444.
They carry 15 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 15 residential ZIP codes in Snyder County
12 ZIP codes lie mainly in Snyder County; 3 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 17870 | Selinsgrove | 14,490 | 316 | $70k | $237k | 98% |
| 17842 | Middleburg | 8,266 | 104 | $63k | $211k | 100% |
| 17889 | Winfield | 3,039 | 124 | $89k | $289k | 59% |
| 17853 | Mount Pleasant Mills | 2,993 | 69 | $64k | $226k | 82% |
| 17864 | Port Trevorton | 2,495 | 119 | $80k | $208k | 100% |
| 17813 | Beavertown | 2,028 | 55 | $65k | $189k | 100% |
| 17086 | Richfield | 1,982 | 54 | $62k | $194k | 64% |
| 17876 | Shamokin Dam | 1,827 | 999 | $71k | $204k | 100% |
| 17812 | Beaver Springs | 1,378 | 53 | $59k | $160k | 100% |
| 17827 | Freeburg | 877 | 433 | $62k | $186k | 100% |
| 17862 | Penns Creek | 530 | 1,421 | $53k | $181k | 100% |
| 17861 | Paxtonville | 152 | 315 | $67k | $213k | 100% |
Partly in Snyder County
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
7 ZIP codes of Snyder County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Snyder | Elsewhere |
|---|---|---|
| 17870 | 98% | Union County 2% |
| 17841 | 46% | Mifflin County 54% |
| 17045 | 7% | Perry County 67%; Juniata County 26% |
| 17063 | 6% | Mifflin County 94% |
| 17889 | 59% | Union County 41% |
| 17853 | 82% | Juniata County 18% |
| 17086 | 64% | Juniata County 36% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 17831 | Hummels Wharf |
| 17833 | Kreamer |
| 17843 | Beaver Springs |
| 17882 | Troxelville |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Snyder County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Snyder County's ZIP codes use 2 prefixes: 170 and 178.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.