County ZIP codes · Pennsylvania · FIPS 42081
Lycoming County, PA ZIP Codes
Lycoming County, Pennsylvania has 32 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 30 residential and 2 for PO boxes or a single organization. 20 of the residential ones lie mainly in Lycoming County and 10 mainly in a neighboring county; 15 cross the county line. Median household income ranges from $53,237 in 17701 (Williamsport) to $88,553 in 17765 (Roaring Branch) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Lycoming 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 $65,089 and $72,500.
They carry 29 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 30 residential ZIP codes in Lycoming County
20 ZIP codes lie mainly in Lycoming County; 10 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 17701 | Williamsport | 43,104 | 440 | $53k | $184k | 90% |
| 17756 | Muncy | 12,856 | 119 | $77k | $223k | 82% |
| 17754 | Montoursville | 12,061 | 201 | $73k | $249k | 100% |
| 17740 | Jersey Shore | 12,017 | 88 | $70k | $180k | 83% |
| 17702 | Williamsport | 10,488 | 171 | $70k | $197k | 100% |
| 17737 | Hughesville | 5,970 | 99 | $70k | $204k | 98% |
| 17810 | Allenwood | 5,309 | 96 | $77k | $222k | 74% |
| 17752 | Montgomery | 4,975 | 122 | $71k | $187k | 100% |
| 17728 | Cogan Station | 4,675 | 103 | $77k | $236k | 100% |
| 17771 | Trout Run | 2,929 | 13 | $71k | $198k | 100% |
| 17744 | Linden | 2,808 | 125 | $73k | $196k | 100% |
| 17774 | Unityville | 962 | 34 | $71k | $236k | 99% |
| 17762 | Picture Rocks | 557 | 1,002 | $96k | $185k | 100% |
| 17720 | Antes Fort | 250 | 74 | $70k | $177k | 100% |
| 17763 | Ralston | 241 | 14 | $57k | $114k | 100% |
| 17776 | Waterville | 145 | 2 | $68k | $165k | 100% |
| 17723 | Cammal | 34 | 2 | $78k | $183k | 100% |
| 17769 | Slate Run | 31 | 1 | $130k | – | 100% |
| 17739 | Jersey Mills | 27 | 2 | $55k | $275k | 100% |
| 17742 | Lairdsville | 21 | 30 | $71k | $160k | 100% |
Partly in Lycoming County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 17765 | Roaring Branch | 1,279 | 14 | $89k | $201k | 42% |
| 17727 | Cedar Run | 41 | 1 | $50k | – | 41% |
| 17745 | Lock Haven | 17,718 | 77 | $59k | $177k | 28% |
| 16938 | Morris | 837 | 8 | $75k | $182k | 27% |
| 16930 | Liberty | 1,119 | 18 | $71k | $198k | 25% |
| 18619 | Hillsgrove | 162 | 6 | $66k | $203k | 18% |
| 17724 | Canton | 4,693 | 43 | $56k | $175k | 8% |
| 17758 | Muncy Valley | 943 | 10 | $59k | $199k | 5% |
| 17846 | Millville | 3,621 | 77 | $67k | $225k | 4% |
| 17814 | Benton | 4,669 | 37 | $65k | $225k | 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?
16 ZIP codes of Lycoming County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Lycoming | Elsewhere |
|---|---|---|
| 17701 | 90% | Sullivan County 10% |
| 17745 | 28% | Clinton County 72% |
| 17756 | 82% | Northumberland County 14%; Montour County 3%; Columbia County 2% |
| 17740 | 83% | Clinton County 17% |
| 17737 | 98% | Sullivan County 2% |
| 17810 | 74% | Union County 26% |
| 17724 | 8% | Bradford County 75%; Tioga County 17% |
| 17814 | 2% | Columbia County 56%; Sullivan County 25%; Luzerne County 17% |
| 17846 | 4% | Columbia County 96% |
| 17765 | 42% | Tioga County 57% |
| 16930 | 25% | Tioga County 75% |
| 17774 | 99% | |
| 17758 | 5% | Sullivan County 95% |
| 16938 | 27% | Tioga County 73% |
| 18619 | 18% | Sullivan County 82% |
| 17727 | 41% | Tioga County 59% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Lycoming County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Lycoming County's ZIP codes use 4 prefixes: 169, 177, 178 and 186.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 169 | Harrisburg, PA (SCF 170) | 2 | 33 |
| 177 | Harrisburg, PA (SCF 170) | 26 | 44 |
| 178 | Harrisburg, PA (SCF 170) | 3 | 60 |
| 186 | Scranton, PA (SCF 184) | 1 | 41 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.