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County ZIP codes · Pennsylvania · FIPS 42037

Columbia County, PA ZIP Codes

Columbia County, Pennsylvania has 19 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 13 of the residential ones lie mainly in Columbia County and 6 mainly in a neighboring county; 14 cross the county line. Median household income ranges from $60,352 in 18603 (Berwick) to $77,043 in 17756 (Muncy) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Columbia County?

17756 · Muncy: $77k17814 · Benton: $65k17815 · Bloomsburg: $68k17820 · Catawissa: $68k17821 · Danville: $77k17824 · Elysburg: $118k17846 · Millville: $67k17858 · Numidia: $81k17859 · Orangeville: $76k17878 · Stillwater: $68k17888 · Wilburton: –17920 · Aristes: –17921 · Ashland: $71k17945 · Locustdale: $25k17985 · Zion Grove: $72k18603 · Berwick: $60k18631 · Mifflinville: $46k18635 · Nescopeck: $74k18655 · Shickshinny: $73k17815178211775617814178201865517859186031784617921186351798517878178241788817756 · Muncy: $77k17814 · Benton: $65k17815 · Bloomsburg: $68k17820 · Catawissa: $68k17821 · Danville: $77k17824 · Elysburg: $118k17846 · Millville: $67k17858 · Numidia: $81k17859 · Orangeville: $76k17878 · Stillwater: $68k17888 · Wilburton: –17920 · Aristes: –17921 · Ashland: $71k17945 · Locustdale: $25k17985 · Zion Grove: $72k18603 · Berwick: $60k18631 · Mifflinville: $46k18635 · Nescopeck: $74k18655 · Shickshinny: $73k178151782117756178141782018655178591860317846179211863517985178781782417756 · Muncy: $77k17814 · Benton: $65k17815 · Bloomsburg: $68k17820 · Catawissa: $68k17821 · Danville: $77k17824 · Elysburg: $118k17846 · Millville: $67k17858 · Numidia: $81k17859 · Orangeville: $76k17878 · Stillwater: $68k17888 · Wilburton: –17920 · Aristes: –17921 · Ashland: $71k17945 · Locustdale: $25k17985 · Zion Grove: $72k18603 · Berwick: $60k18631 · Mifflinville: $46k18635 · Nescopeck: $74k18655 · Shickshinny: $73k1781517821177561781417820186551785918603178461792118635179851787817824
The residential ZIP codes of Columbia County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024).<$54.1k$98.1k+no figure

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 $67,510 and $73,480.

They carry 19 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 19 residential ZIP codes in Columbia County

13 ZIP codes lie mainly in Columbia County; 6 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Columbia County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
17815 Bloomsburg 29,790 237 $68k $223k 97%
18603 Berwick 18,827 353 $60k $171k 58%
17820 Catawissa 5,499 63 $68k $215k 94%
17814 Benton 4,669 37 $65k $225k 56%
17824 Elysburg 3,949 141 $118k $245k 55%
17846 Millville 3,621 77 $67k $225k 96%
17859 Orangeville 2,701 71 $76k $225k 100%
17878 Stillwater 1,488 68 $68k $214k 71%
18631 Mifflinville 1,100 774 $46k $214k 100%
17888 Wilburton 446 59 – $156k 100%
17920 Aristes 246 109 – $150k 100%
17945 Locustdale 133 126 $25k $41k 97%
17858 Numidia 111 350 $81k $229k 100%

Partly in Columbia County

Residential ZIP codes mainly in another county that reach at least 1% into Columbia County, by their share here
In this county
17985 Zion Grove 1,237 34 $72k $180k 42%
18635 Nescopeck 3,734 99 $74k $196k 40%
18655 Shickshinny 6,018 84 $73k $191k 10%
17921 Ashland 6,931 198 $71k $150k 9%
17821 Danville 18,613 138 $77k $250k 6%
17756 Muncy 12,856 119 $77k $223k 2%

Download the 19 ZIP codes as CSV

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?

14 ZIP codes of Columbia County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Columbia County and in the neighboring counties
ZIPIn ColumbiaElsewhere
1781597%Luzerne County2%
1860358%Luzerne County42%
178216%Montour County70%; Northumberland County24%
177562%Lycoming County82%; Northumberland County14%; Montour County3%
179219%Schuylkill County91%
1865510%Luzerne County90%
1782094%Montour County6%
1781456%Sullivan County25%; Luzerne County17%; Lycoming County2%
1782455%Northumberland County44%; Montour County2%
1863540%Luzerne County60%
1784696%Lycoming County4%
1787871%Luzerne County29%
1798542%Schuylkill County58%
1794597%Schuylkill County3%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Columbia County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Columbia County's ZIP codes use 4 prefixes: 177, 178, 179 and 186.

Three-digit prefixes of Columbia County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Columbia County's
PrefixSectional centerHereAll codes
177Harrisburg, PA (SCF 170)144
178Harrisburg, PA (SCF 170)1060
179Harrisburg, PA (SCF 170)447
186Scranton, PA (SCF 184)441

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.