| ZIP Codes: | 6 ZIP Codes (5 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Codes: | 618 / 730 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:11:59 PM |
| Population: | 13,463 [See All] |
| FIPS: | 17025 |
| Land Area: | 472 sq mi |
| Water Area: | 1 sq mi |
| Coordinates: | 38.7309, -88.4468 |
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13,463 residents live across 6 ZIPs covering 472 sq mi, served by 6 distinct USPS-recognized cities.
Population moved from 13,555 to 13,463 from 2014 to 2024 — a -0.7% change. 2 ZIPs gained residents, 4 lost.
The county's wealthiest ZIP 62858 (Louisville, $66,319 median) and poorest ZIP 62839 (Flora, $53,685) are 10.0 miles apart — a 1.2× income gap across local geography.
Median home values vary 2.3× across this county — from $84,300 in 62839 (Flora) to $193,100 in 62434 (Ingraham).
Density varies 13× across the county — from 7 people/sq mi in 62434 (Ingraham) to 88 in 62839 (Flora).
Educational attainment ranges from 9.0% bachelor's+ in 62899 (Xenia) to 13.9% in 62839 (Flora) — the breadth of educational profiles across the area.
Within Illinois, this is the #79 most populous of 102 counties and ranks #97 for median household income .
Weighted by population, the typical household earns about $58,170 across the county — reflecting what a typical resident sees, not a simple ZIP average.
12.8% of adults age 25+ hold a bachelor's degree or higher (1,157 of 9,054 reporting).
5 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 |
|---|---|---|---|---|---|---|
| 62839 | Flora | Standard | 6,183 | $53,685 | 70.2 | -6.6% |
| 62858 | Louisville | Standard | 3,554 | $66,319 | 159.6 | 10.7% |
| 62899 | Xenia | Standard | 2,022 | $55,482 | 109.7 | 26.5% |
| 62824 | Clay City | Standard | 1,485 | $61,591 | 103.3 | -16.6% |
| 62434 | Ingraham | Standard | 191 | — | 29.0 | -22.7% |
| 62879 | Sailor Springs | PO Box | 28 | $26,964 | 0.0 | -72.8% |