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County ZIP codes · Illinois · FIPS 17083

Jersey County, IL ZIP Codes

Jersey County, Illinois has 11 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 8 of the residential ones lie mainly in Jersey County and 3 mainly in a neighboring county; 6 cross the county line. Median household income ranges from $73,454 in 62037 (Grafton) to $93,973 in 62035 (Godfrey) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Jersey County?

62012 · Brighton: $93k62022 · Dow: $111k62028 · Elsah: $72k62030 · Fidelity: $44k62031 · Fieldon: $84k62035 · Godfrey: $94k62037 · Grafton: $74k62052 · Jerseyville: $75k62054 · Kane: $61k62063 · Medora: $63k62079 · Piasa: $133k6205262012620316206362037620356205462022620796202862012 · Brighton: $93k62022 · Dow: $111k62028 · Elsah: $72k62030 · Fidelity: $44k62031 · Fieldon: $84k62035 · Godfrey: $94k62037 · Grafton: $74k62052 · Jerseyville: $75k62054 · Kane: $61k62063 · Medora: $63k62079 · Piasa: $133k6205262012620316206362037620356205462022620796202862012 · Brighton: $93k62022 · Dow: $111k62028 · Elsah: $72k62030 · Fidelity: $44k62031 · Fieldon: $84k62035 · Godfrey: $94k62037 · Grafton: $74k62052 · Jerseyville: $75k62054 · Kane: $61k62063 · Medora: $63k62079 · Piasa: $133k62052620126203162063620376203562054620226207962028
The residential ZIP codes of Jersey 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 $73,454 and $92,571.

They carry 11 postal town names.

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

All 11 residential ZIP codes in Jersey County

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

Residential ZIP codes mainly in Jersey County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
62052 Jerseyville 12,237 86 $75k $168k 99%
62012 Brighton 6,672 111 $93k $169k 50%
62037 Grafton 1,814 32 $74k $229k 100%
62028 Elsah 1,385 231 $72k $171k 100%
62022 Dow 1,088 53 $111k $188k 100%
62063 Medora 795 15 $63k $129k 52%
62031 Fieldon 517 9 $84k $119k 100%
62030 Fidelity 71 703 $44k $91k 100%

Partly in Jersey County

Residential ZIP codes mainly in another county that reach at least 1% into Jersey County, by their share here
In this county
62054 Kane 315 9 $61k $95k 34%
62035 Godfrey 15,892 363 $94k $182k 30%
62079 Piasa 292 26 $133k $147k 19%

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?

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

Share of each ZIP code's land in Jersey County and in the neighboring counties
ZIPIn JerseyElsewhere
6203530%Madison County 70%
6205299%Greene County 1%
6201250%Macoupin County 45%; Madison County 5%
6206352%Macoupin County 48%
6205434%Greene County 66%
6207919%Macoupin County 81%

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

Which first three digits do Jersey 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 Jersey County starts with 620.

Three-digit prefixes of Jersey 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 Jersey County's
PrefixSectional centerHereAll codes
620 St Louis, MO (SCF 630) 11 78

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