| ZIP Codes: | 8 ZIP Codes (7 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Codes: | 217 / 309 / 447 / 861 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:11:59 PM |
| Population: | 15,064 [See All] |
| FIPS: | 17039 |
| Land Area: | 409 sq mi |
| Water Area: | 8 sq mi |
| Coordinates: | 40.1712, -88.9081 |
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15,064 residents live across 8 ZIPs covering 409 sq mi, served by 8 distinct USPS-recognized cities.
Population moved from 16,489 to 15,064 from 2014 to 2024 — a -8.6% change. 4 ZIPs gained residents, 4 lost.
The county's wealthiest ZIP 61735 (Dewitt, $93,125 median) and poorest ZIP 61778 (Waynesville, $59,868) are 14.6 miles apart — a 1.6× income gap across local geography.
Median home values vary 1.4× across this county — from $112,900 in 61749 (Kenney) to $162,500 in 61735 (Dewitt).
Density varies 72× across the county — from 17 people/sq mi in 61735 (Dewitt) to 1,209 in 61750 (Lane).
Educational attainment ranges from 18.9% bachelor's+ in 61882 (Weldon) to 32.6% in 61778 (Waynesville) — the breadth of educational profiles across the area.
Within Illinois, this is the #70 most populous of 102 counties and ranks #33 for median household income .
Weighted by population, the typical household earns about $73,849 across the county — reflecting what a typical resident sees, not a simple ZIP average.
23.3% of adults age 25+ hold a bachelor's degree or higher (2,506 of 10,733 reporting).
7 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 61727 | Clinton | Standard | 9,033 | $70,063 | 138.8 | -11.1% |
| 61842 | Farmer City | Standard | 2,620 | $80,117 | 103.2 | -8.3% |
| 61777 | Wapella | Standard | 956 | $90,250 | 36.7 | 22.6% |
| 61882 | Weldon | Standard | 777 | $80,139 | 45.8 | 14.3% |
| 61749 | Kenney | Standard | 653 | $70,667 | 33.6 | 18.9% |
| 61778 | Waynesville | Standard | 547 | $59,868 | 29.0 | -31.6% |
| 61735 | Dewitt | Standard | 360 | $93,125 | 21.5 | -34.3% |
| 61750 | Lane | PO Box | 118 | — | 0.1 | 2.6% |