County ZIP codes · Pennsylvania · FIPS 42093
Montour County, PA ZIP Codes
Montour County, Pennsylvania has 9 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 4 of the residential ones lie mainly in Montour County and 5 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $58,775 in 17847 (Milton) to $81,146 in 17772 (Turbotville) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Montour 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 $67,188 and $76,971.
They carry 8 postal town names: Danville, Muncy, Milton, Watsontown, Catawissa, Elysburg, Turbotville, Washingtonville.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 9 residential ZIP codes in Montour County
4 ZIP codes lie mainly in Montour County; 5 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 17821 | Danville | 18,613 | 138 | $77k | $250k | 70% |
| 17772 | Turbotville | 2,693 | 116 | $81k | $242k | 69% |
| 17884 | Washingtonville | 263 | 4,242 | $56k | $170k | 100% |
| 17822 | Danville | 11 | 95 | – | – | 100% |
Partly in Montour County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 17847 | Milton | 11,260 | 243 | $59k | $197k | 20% |
| 17820 | Catawissa | 5,499 | 63 | $68k | $215k | 6% |
| 17777 | Watsontown | 7,030 | 191 | $67k | $217k | 3% |
| 17756 | Muncy | 12,856 | 119 | $77k | $223k | 3% |
| 17824 | Elysburg | 3,949 | 141 | $118k | $245k | 2% |
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 Montour County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Montour | Elsewhere |
|---|---|---|
| 17821 | 70% | Northumberland County 24%; Columbia County 6% |
| 17756 | 3% | Lycoming County 82%; Northumberland County 14%; Columbia County 2% |
| 17847 | 20% | Northumberland County 80% |
| 17777 | 3% | Northumberland County 97% |
| 17820 | 6% | Columbia County 94% |
| 17824 | 2% | Columbia County 55%; Northumberland County 44% |
| 17772 | 69% | Northumberland County 31% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Montour County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Montour County's ZIP codes use 2 prefixes: 177 and 178.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.