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County ZIP codes · Illinois · FIPS 17153

Pulaski County, IL ZIP Codes

Pulaski County, Illinois has 11 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 10 residential and 1 for PO boxes or a single organization. 7 of the residential ones lie mainly in Pulaski County and 3 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $31,833 in 62964 (Mounds) to $73,462 in 62956 (Karnak) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Pulaski County?

62923 · Cypress: $52k62926 · Dongola: $65k62941 · Grand Chain: $48k62956 · Karnak: $74k62963 · Mound City: $55k62964 · Mounds: $32k62970 · Olmsted: $34k62976 · Pulaski: $40k62992 · Ullin: $63k62996 · Villa Ridge: $56k6292662992629416297062956629966296462976629236296362923 · Cypress: $52k62926 · Dongola: $65k62941 · Grand Chain: $48k62956 · Karnak: $74k62963 · Mound City: $55k62964 · Mounds: $32k62970 · Olmsted: $34k62976 · Pulaski: $40k62992 · Ullin: $63k62996 · Villa Ridge: $56k6292662992629416297062956629966296462976629236296362923 · Cypress: $52k62926 · Dongola: $65k62941 · Grand Chain: $48k62956 · Karnak: $74k62963 · Mound City: $55k62964 · Mounds: $32k62970 · Olmsted: $34k62976 · Pulaski: $40k62992 · Ullin: $63k62996 · Villa Ridge: $56k62926629926294162970629566299662964629766292362963
The residential ZIP codes of Pulaski 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?

They carry 10 postal town names.

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

All 10 residential ZIP codes in Pulaski County

7 ZIP codes lie mainly in Pulaski County; 3 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Pulaski County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
62964 Mounds 1,109 43 $32k – 100%
62963 Mound City 713 171 $55k $53k 100%
62941 Grand Chain 639 21 $48k $139k 74%
62992 Ullin 629 17 $63k $59k 82%
62996 Villa Ridge 523 20 $56k $92k 100%
62970 Olmsted 465 15 $34k $115k 100%
62976 Pulaski 392 16 $40k $101k 100%

Partly in Pulaski County

Residential ZIP codes mainly in another county that reach at least 1% into Pulaski County, by their share here
In this county
62956 Karnak 1,172 43 $74k $129k 49%
62926 Dongola 1,998 26 $65k $113k 22%
62923 Cypress 441 19 $52k $79k 18%

Download the 11 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?

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

Share of each ZIP code's land in Pulaski County and in the neighboring counties
ZIPIn PulaskiElsewhere
6292622%Union County 78%
6295649%Massac County 51%
6294174%Massac County 26%
6299282%Alexander County 18%
6292318%Johnson County 60%; Union County 22%

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

PO Box and single-organization ZIP codes

ZIP codes in Pulaski County without a residential area (GeoNames postal codes)
ZIPPostal name
62973Perks

Source: GeoNames postal codes (CC BY 4.0).

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Pulaski County starts with 629.

Three-digit prefixes of Pulaski 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 Pulaski County's
PrefixSectional centerHereAll codes
629 St Louis, MO (SCF 630) 11 83

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