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County ZIP codes · Iowa · FIPS 19045

Clinton County, IA ZIP Codes

Clinton County, Iowa has 24 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 21 residential and 3 for PO boxes or a single organization. 15 of the residential ones lie mainly in Clinton County and 6 mainly in a neighboring county; 9 cross the county line. Median household income ranges from $61,105 in 52732 (Clinton) to $97,946 in 52742 (De Witt) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Clinton County?

52037 · Delmar: $91k52060 · Maquoketa: $68k52064 · Miles: $75k52069 · Preston: $75k52070 · Sabula: $79k52207 · Baldwin: $59k52254 · Lost Nation: $64k52323 · Oxford Junction: $41k52701 · Andover: –52727 · Bryant: $103k52729 · Calamus: $88k52730 · Camanche: $65k52731 · Charlotte: $88k52732 · Clinton: $61k52742 · De Witt: $98k52750 · Goose Lake: $93k52751 · Grand Mound: $82k52757 · Low Moor: $63k52771 · Teeds Grove: –52774 · Welton: $71k52777 · Wheatland: $60k520605273252742527515203752070522545232352069527775273152064527305220752729527505272752037 · Delmar: $91k52060 · Maquoketa: $68k52064 · Miles: $75k52069 · Preston: $75k52070 · Sabula: $79k52207 · Baldwin: $59k52254 · Lost Nation: $64k52323 · Oxford Junction: $41k52701 · Andover: –52727 · Bryant: $103k52729 · Calamus: $88k52730 · Camanche: $65k52731 · Charlotte: $88k52732 · Clinton: $61k52742 · De Witt: $98k52750 · Goose Lake: $93k52751 · Grand Mound: $82k52757 · Low Moor: $63k52771 · Teeds Grove: –52774 · Welton: $71k52777 · Wheatland: $60k520605273252742527515203752070522545232352069527775273152064527305220752729527505272752037 · Delmar: $91k52060 · Maquoketa: $68k52064 · Miles: $75k52069 · Preston: $75k52070 · Sabula: $79k52207 · Baldwin: $59k52254 · Lost Nation: $64k52323 · Oxford Junction: $41k52701 · Andover: –52727 · Bryant: $103k52729 · Calamus: $88k52730 · Camanche: $65k52731 · Charlotte: $88k52732 · Clinton: $61k52742 · De Witt: $98k52750 · Goose Lake: $93k52751 · Grand Mound: $82k52757 · Low Moor: $63k52771 · Teeds Grove: –52774 · Welton: $71k52777 · Wheatland: $60k52060527325274252751520375207052254523235206952777527315273052729
The residential ZIP codes of Clinton 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 $64,543 and $75,313.

They carry 21 postal town names.

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

All 21 residential ZIP codes in Clinton County

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

Residential ZIP codes mainly in Clinton County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
52732 Clinton 25,880 236 $61k $122k 100%
52742 De Witt 7,284 62 $98k $261k 100%
52730 Camanche 4,776 126 $65k $177k 100%
52777 Wheatland 1,389 25 $60k $159k 93%
52037 Delmar 1,172 17 $91k $198k 98%
52254 Lost Nation 1,004 17 $64k $114k 100%
52751 Grand Mound 976 19 $82k $173k 100%
52729 Calamus 886 22 $88k $179k 99%
52731 Charlotte 867 17 $88k $156k 98%
52750 Goose Lake 654 22 $93k $167k 100%
52727 Bryant 398 16 $103k $258k 100%
52757 Low Moor 242 494 $63k $118k 100%
52701 Andover 124 197 – $119k 100%
52774 Welton 101 338 $71k $119k 100%
52771 Teeds Grove 56 33 – – 100%

Partly in Clinton County

Residential ZIP codes mainly in another county that reach at least 1% into Clinton County, by their share here
In this county
52069 Preston 1,743 36 $75k $170k 22%
52070 Sabula 990 21 $79k $173k 16%
52064 Miles 685 16 $75k $140k 14%
52323 Oxford Junction 942 20 $41k $86k 13%
52207 Baldwin 256 7 $59k $72k 13%
52060 Maquoketa 8,007 50 $68k $158k 12%

Download the 24 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?

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

Share of each ZIP code's land in Clinton County and in the neighboring counties
ZIPIn ClintonElsewhere
5206012%Jackson County 88%
5206922%Jackson County 78%
5277793%Cedar County 7%
5203798%Jackson County 2%
5207016%Jackson County 85%
5232313%Jones County 78%; Cedar County 9%
5272999%
5273198%Jackson County 2%
5206414%Jackson County 86%
5220713%Jackson County 87%

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

PO Box and single-organization ZIP codes

ZIP codes in Clinton County without a residential area (GeoNames postal codes)
ZIPPostal name
52733Clinton
52734Clinton
52736Clinton

Source: GeoNames postal codes (CC BY 4.0).

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Clinton County's ZIP codes use 4 prefixes: 520, 522, 523 and 527.

Three-digit prefixes of Clinton 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 Clinton County's
PrefixSectional centerHereAll codes
520 Cedar Rapids, IA (SCF 522) 5 46
522 Cedar Rapids, IA (SCF 522) 2 50
523 Cedar Rapids, IA (SCF 522) 1 53
527 Quad Cities, IL (SCF 612) 16 47

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