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County ZIP codes · Iowa · FIPS 19099

Jasper County, IA ZIP Codes

Jasper County, Iowa has 21 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 12 of the residential ones lie mainly in Jasper County and 9 mainly in a neighboring county; 15 cross the county line. Median household income ranges from $62,306 in 50208 (Newton) to $101,806 in 50237 (Runnells) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Jasper County?

50028 · Baxter: $72k50054 · Colfax: $90k50055 · Collins: $85k50106 · Gilman: $101k50112 · Grinnell: $67k50127 · Ira: –50135 · Kellogg: $65k50137 · Killduff: –50141 · Laurel: $78k50153 · Lynnville: $74k50161 · Maxwell: $99k50162 · Melbourne: $71k50168 · Mingo: $114k50169 · Mitchellville: $84k50170 · Monroe: $89k50208 · Newton: $62k50228 · Prairie City: $91k50232 · Reasnor: $88k50234 · Rhodes: $79k50237 · Runnells: $102k50251 · Sully: $91k5020850112501705022850161501065013550054502375025150028501625016950141501535016850055502325023450028 · Baxter: $72k50054 · Colfax: $90k50055 · Collins: $85k50106 · Gilman: $101k50112 · Grinnell: $67k50127 · Ira: –50135 · Kellogg: $65k50137 · Killduff: –50141 · Laurel: $78k50153 · Lynnville: $74k50161 · Maxwell: $99k50162 · Melbourne: $71k50168 · Mingo: $114k50169 · Mitchellville: $84k50170 · Monroe: $89k50208 · Newton: $62k50228 · Prairie City: $91k50232 · Reasnor: $88k50234 · Rhodes: $79k50237 · Runnells: $102k50251 · Sully: $91k5020850112501705022850161501065013550054502375025150028501625016950141501535016850055502325023450028 · Baxter: $72k50054 · Colfax: $90k50055 · Collins: $85k50106 · Gilman: $101k50112 · Grinnell: $67k50127 · Ira: –50135 · Kellogg: $65k50137 · Killduff: –50141 · Laurel: $78k50153 · Lynnville: $74k50161 · Maxwell: $99k50162 · Melbourne: $71k50168 · Mingo: $114k50169 · Mitchellville: $84k50170 · Monroe: $89k50208 · Newton: $62k50228 · Prairie City: $91k50232 · Reasnor: $88k50234 · Rhodes: $79k50237 · Runnells: $102k50251 · Sully: $91k50208501125017050161501065013550054502375025150028501625014150055
The residential ZIP codes of Jasper 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 $83,938 and $91,061.

They carry 21 postal town names.

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

All 21 residential ZIP codes in Jasper County

12 ZIP codes lie mainly in Jasper County; 9 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Jasper County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
50208 Newton 20,595 130 $62k $169k 100%
50054 Colfax 3,166 52 $90k $212k 100%
50170 Monroe 3,024 36 $89k $217k 69%
50228 Prairie City 2,120 31 $91k $211k 90%
50028 Baxter 1,981 44 $72k $206k 96%
50135 Kellogg 1,754 24 $65k $165k 100%
50251 Sully 1,365 31 $91k $186k 97%
50153 Lynnville 890 27 $74k $181k 88%
50168 Mingo 826 22 $114k $300k 96%
50232 Reasnor 569 17 $88k $264k 100%
50137 Killduff 114 55 – $188k 100%
50127 Ira 10 17 – – 100%

Partly in Jasper County

Residential ZIP codes mainly in another county that reach at least 1% into Jasper County, by their share here
In this county
50169 Mitchellville 3,667 80 $84k $227k 44%
50141 Laurel 587 16 $78k $140k 43%
50055 Collins 1,102 21 $85k $200k 31%
50112 Grinnell 11,862 65 $67k $215k 26%
50106 Gilman 1,163 17 $101k $119k 23%
50234 Rhodes 559 21 $79k $196k 17%
50237 Runnells 3,635 75 $102k $347k 13%
50162 Melbourne 1,164 23 $71k $177k 4%
50161 Maxwell 2,296 29 $99k $257k 3%

Download the 21 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?

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

Share of each ZIP code's land in Jasper County and in the neighboring counties
ZIPIn JasperElsewhere
5011226%Poweshiek County74%
5016944%Polk County56%
5023713%Polk County78%; Marion County9%
5017069%Marion County31%
501613%Polk County56%; Story County41%
5022890%Marion County10%
5002896%Marshall County4%
5025197%Mahaska County3%
501624%Marshall County96%
5010623%Marshall County51%; Tama County20%; Poweshiek County5%
5005531%Story County65%; Marshall County4%
5015388%Mahaska County9%; Poweshiek County3%
5016896%Polk County4%
5014143%Marshall County57%
5023417%Marshall County83%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Jasper County's ZIP codes use 3 prefixes: 500, 501 and 502.

Three-digit prefixes of Jasper 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 Jasper County's
PrefixSectional centerHereAll codes
500Des Moines, IA (SCF 500)368
501Des Moines, IA (SCF 500)1269
502Des Moines, IA (SCF 500)665

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