St. Clair County, IL ZIP Codes
31 ZIP codes cover all or part of St. Clair County, Illinois. The Census Bureau counts 253,694 residents in the county, with a median household income of $73,854 and a median home value of $180,300. Median household income ranges from $27,437 in 62201 to $136,345 in 62285. Its largest communities include Belleville, O'Fallon, East St. Louis, Fairview Heights and Swansea.
St. Clair County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 253,694 |
| Households | 100,846 |
| Median household income | $73,854 |
| Median home value | $180,300 |
| Median age | 39.9 |
| Median rent | $1,090 |
All 31 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 302,533 |
| Households (sum of ZIP codes) | 121,448 |
| Median household income, range across ZIP codes | $27,437 (62201) to $136,345 (62285) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $77,479 |
| Homeowners | 69.3% |
| Households with kids under 18 | 29.9% |
| Moved in the past year | 11.4% |
| Carrier routes in EDDM2GO's route library | 139 routes, 69,966 homes (13 of 31 ZIP codes) |
Top facts
- Highest median household income in St. Clair County: 62285 ($136,345)
- Most residents: 62269 (35,923 people)
- Highest homeownership: 62285 (94.5% own their home)
- Most households with kids: 62225 (67.7% of households)
- Most new movers: 62240 (42.2% moved in last year)
- Youngest median age: 62225 (25.8 years)
- Highest median home value: 62236 ($306,600)
Every ZIP code in St. Clair County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 62269 | O Fallon | 35,923 | 14,244 | $103,818 | $291,800 | 71.3% | 34.8% | 11.3% | — | — | 100% of its land |
| 62234 | Collinsville | 31,648 | 13,843 | $69,607 | $170,000 | 69.9% | 26.8% | 11.5% | 26 | 15,036 | 17% of its land |
| 62221 | Belleville | 29,875 | 12,151 | $82,271 | $217,500 | 65.2% | 33.4% | 11.9% | — | — | 100% of its land |
| 62226 | Belleville | 28,255 | 11,919 | $70,797 | $167,000 | 67.0% | 25.7% | 8.6% | 24 | 13,852 | 100% of its land |
| 62220 | Belleville | 19,152 | 7,873 | $65,952 | $157,400 | 63.0% | 28.4% | 15.0% | 16 | 8,781 | 100% of its land |
| 62208 | Fairview Heights | 16,821 | 7,336 | $80,205 | $176,000 | 66.8% | 25.8% | 10.5% | 13 | 8,265 | 100% of its land |
| 62223 | Belleville | 16,269 | 7,096 | $73,700 | $159,400 | 76.4% | 24.2% | 12.1% | — | — | 100% of its land |
| 62236 | Columbia | 14,154 | 5,485 | $108,981 | $306,600 | 85.3% | 35.3% | 8.0% | 12 | 6,131 | 18% of its land |
| 62206 | East Saint Louis | 12,959 | 4,620 | $33,838 | $53,200 | 55.5% | 42.0% | 15.1% | 11 | 4,800 | 100% of its land |
| 62258 | Mascoutah | 10,437 | 3,768 | $94,655 | $232,500 | 74.2% | 34.7% | 13.7% | 8 | 4,521 | 100% of its land |
| 62232 | Caseyville | 7,063 | 2,717 | $64,269 | $125,000 | 76.4% | 25.5% | 10.7% | 6 | 3,421 | 100% of its land |
| 62207 | East Saint Louis | 6,984 | 2,593 | $29,845 | $58,200 | 49.1% | 32.9% | 6.5% | — | — | 100% of its land |
| 62254 | Lebanon | 6,710 | 2,378 | $96,492 | $218,000 | 71.1% | 19.0% | 14.1% | 5 | 2,621 | 98% of its land |
| 62260 | Millstadt | 6,668 | 2,781 | $91,039 | $252,500 | 85.6% | 26.5% | 9.3% | 7 | 3,212 | 100% of its land |
| 62205 | East Saint Louis | 6,459 | 2,276 | $45,672 | $41,800 | 68.4% | 22.0% | 8.8% | — | — | 100% of its land |
| 62243 | Freeburg | 6,418 | 2,393 | $103,342 | $279,500 | 86.0% | 31.7% | 6.2% | — | — | 100% of its land |
| 62203 | East Saint Louis | 5,465 | 1,843 | $42,111 | $68,700 | 66.6% | 14.5% | 12.3% | — | — | 100% of its land |
| 62225 | Scott Air Force Base | 5,242 | 1,509 | $103,284 | — | 2.7% | 67.7% | 30.7% | — | — | 100% of its land |
| 62201 | East Saint Louis | 4,921 | 2,065 | $27,437 | $60,000 | 51.2% | 27.8% | 14.4% | — | — | 96% of its land |
| 62265 | New Baden | 4,555 | 1,744 | $84,853 | $194,500 | 67.3% | 34.1% | 7.6% | — | — | 14% of its land |
| 62293 | Trenton | 4,433 | 1,817 | $98,155 | $250,600 | 81.5% | 25.8% | 9.6% | — | — | 37% of its land |
| 62285 | Smithton | 4,239 | 1,669 | $136,345 | $274,400 | 94.5% | 29.7% | 3.3% | — | — | 100% of its land |
| 62239 | Dupo | 4,232 | 1,763 | $61,191 | $111,400 | 67.1% | 33.7% | 13.9% | — | — | 100% of its land |
| 62204 | East Saint Louis | 4,055 | 1,710 | $35,346 | $47,800 | 77.1% | 20.9% | 7.8% | 5 | 1,721 | 100% of its land |
| 62264 | New Athens | 3,097 | 1,315 | $57,015 | $127,400 | 77.2% | 30.9% | 7.9% | 5 | 1,329 | 94% of its land |
| 62257 | Marissa | 2,046 | 878 | $78,750 | $138,100 | 81.0% | 30.2% | 3.9% | — | — | 57% of its land |
| 62240 | East Carondelet | 1,796 | 535 | $96,063 | $89,400 | 87.9% | 36.3% | 42.2% | 1 | 690 | 100% of its land |
| 62255 | Lenzburg | 1,092 | 459 | $80,506 | $160,800 | 86.9% | 30.5% | 1.2% | — | — | 100% of its land |
| 62059 | Lovejoy | 729 | 278 | $30,673 | $37,500 | 44.6% | 30.9% | 13.7% | — | — | 100% of its land |
| 62282 | Saint Libory | 563 | 256 | $117,143 | $179,300 | 85.5% | 28.5% | 8.6% | — | — | 100% of its land |
| 62289 | Summerfield | 273 | 134 | $47,237 | $64,500 | 86.6% | 16.4% | 8.1% | — | — | 100% of its land |
A ZIP code is listed for St. Clair County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Belleville — 41,370 residents · 4 ZIP codes
- O'Fallon — 32,262 residents · 1 ZIP code
- East St. Louis — 17,999 residents · 5 ZIP codes
- Fairview Heights — 16,745 residents · 1 ZIP code
- Swansea — 14,710 residents · 1 ZIP code
- Shiloh — 14,572 residents · 2 ZIP codes
- Mascoutah — 8,816 residents · 1 ZIP code
- Freeburg — 4,592 residents · 2 ZIP codes
- Lebanon — 4,474 residents · 1 ZIP code
- Caseyville — 4,130 residents · 1 ZIP code
- Millstadt — 4,008 residents · 1 ZIP code
- Scott AFB — 3,957 residents · 1 ZIP code
- Dupo — 3,879 residents · 2 ZIP codes
- Smithton — 3,680 residents · 2 ZIP codes
- Madison — 2,900 residents · 4 ZIP codes
- Fairmont City — 2,492 residents · 2 ZIP codes
- New Athens — 1,933 residents · 1 ZIP code
- Washington Park — 1,701 residents · 2 ZIP codes
- Marissa — 1,232 residents · 1 ZIP code
- Brooklyn — 729 residents · 2 ZIP codes
- St. Libory — 559 residents · 1 ZIP code
- Lenzburg — 428 residents · 1 ZIP code
- Fayetteville — 357 residents · 1 ZIP code
- Sauget — 307 residents · 2 ZIP codes
- Summerfield — 248 residents · 2 ZIP codes
- East Carondelet — 233 residents · 1 ZIP code
- Darmstadt — 18 residents · 1 ZIP code
- Rentchler — 0 residents · 1 ZIP code
Rankings
- Richest ZIP codes in St. Clair County — 28 ZIP codes ranked
- ZIP codes with the highest home values in St. Clair County — 27 ZIP codes ranked
- ZIP codes with the highest homeownership in St. Clair County — 28 ZIP codes ranked
- ZIP codes with the most families with kids in St. Clair County — 28 ZIP codes ranked
- ZIP codes with the most new movers in St. Clair County — 28 ZIP codes ranked
- Youngest ZIP codes in St. Clair County — 28 ZIP codes ranked
- Oldest ZIP codes in St. Clair County — 28 ZIP codes ranked
- Fastest-growing ZIP codes in St. Clair County — 28 ZIP codes ranked
Price a mailing to St. Clair County ZIP codes
EDDM guides
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Frequently asked questions
- What ZIP codes are in St. Clair County, IL?
- 62269, 62234, 62221, 62226, 62220, 62208, 62223, 62236, 62206, 62258, 62232, 62207, 62254, 62260, 62205, 62243, 62203, 62225, 62201, 62265, 62293, 62285, 62239, 62204, 62264, 62257, 62240, 62255, 62059, 62282 and 62289. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of St. Clair County?
- 253,694 residents in 100,846 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in St. Clair County?
- $73,854 for the county as a whole. Its ZIP codes range from $27,437 (62201) to $136,345 (62285).
- Which St. Clair County ZIP code has the highest median household income?
- 62285, at $136,345, among ZIP codes with at least 1,000 residents. See the full ranking of St. Clair County ZIP codes by income.
- How many carrier routes and mailboxes are in St. Clair County?
- For the 13 of 31 ZIP codes in EDDM2GO's stored route library: 139 carrier routes reaching 69,966 residential and 4,417 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.