| ZIP Codes: | 10 ZIP Codes (9 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Codes: | 235 / 573 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:43 PM |
| Population: | 9,771 [See All] |
| FIPS: | 29093 |
| Land Area: | 640 sq mi |
| Water Area: | 3 sq mi |
| Coordinates: | 37.5449, -90.7831 |
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9,771 residents live across 10 ZIPs covering 640 sq mi, served by 10 distinct USPS-recognized cities.
Population moved from 10,924 to 9,771 from 2014 to 2024 — a -10.6% change. 4 ZIPs gained residents, 6 lost.
The county's wealthiest ZIP 63621 (Arcadia, $87,825 median) and poorest ZIP 65439 (Bixby, $21,492) are 28.5 miles apart — a 4.1× income gap across local geography.
Median home values vary 3.1× across this county — from $65,400 in 63636 (Des Arc) to $202,600 in 63620 (Annapolis).
Density varies 507× across the county — from 1 people/sq mi in 65439 (Bixby) to 745 in 63663 (Pilot Knob).
Educational attainment ranges from 7.4% bachelor's+ in 63663 (Pilot Knob) to 23.7% in 63650 (Ironton) — the breadth of educational profiles across the area.
Within Missouri, this is the #84 most populous of 116 counties and ranks #107 for median household income .
Weighted by population, the typical household earns about $54,122 across the county — reflecting what a typical resident sees, not a simple ZIP average.
16.9% of adults age 25+ hold a bachelor's degree or higher (1,211 of 7,170 reporting).
9 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.
Median household income spans 4.1× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
Iron County lost 10.6% of residents between 2014 and 2024. ZIPs that shed the largest share:
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 63650 | Ironton | Standard | 3,600 | $50,183 | 119.6 | -18.1% |
| 63621 | Arcadia | Standard | 1,632 | $87,825 | 56.4 | 17.7% |
| 63620 | Annapolis | Standard | 1,036 | $42,426 | 198.7 | -21.7% |
| 63623 | Belleview | Standard | 895 | $44,844 | 115.8 | 10.9% |
| 65566 | Viburnum | Standard | 858 | $39,583 | 11.7 | 15.8% |
| 63663 | Pilot Knob | PO Box | 649 | $44,750 | 0.9 | -1.4% |
| 63656 | Middle Brook | Standard | 576 | $47,181 | 49.6 | 75.6% |
| 63636 | Des Arc | Standard | 446 | $65,000 | 33.7 | -29.4% |
| 65439 | Bixby | Standard | 55 | $21,492 | 37.5 | -87.4% |
| 63675 | Vulcan | Standard | 24 | $16,250 | 15.8 | -88.7% |