| ZIP Codes: | 7 ZIP Codes (7 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Code: | 641 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:53:13 PM |
| Population: | 6,991 [See All] |
| FIPS: | 19195 |
| CBSA: | Mason City, IA |
| Land Area: | 360 sq mi |
| Water Area: | 1 sq mi |
| Coordinates: | 43.3286, -93.2967 |
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6,991 residents live across 7 ZIPs covering 360 sq mi, served by 7 distinct USPS-recognized cities.
Population moved from 7,253 to 6,991 from 2014 to 2024 — a -3.6% change. 2 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 50446 (Joice, $107,000 median) and poorest ZIP 50448 (Kensett, $62,059) are 10.4 miles apart — a 1.7× income gap across local geography.
Median home values vary 1.3× across this county — from $122,500 in 50440 (Grafton) to $154,200 in 50446 (Joice).
Density varies 4× across the county — from 10 people/sq mi in 50448 (Kensett) to 38 in 50434 (Fertile).
Educational attainment ranges from 16.3% bachelor's+ in 50440 (Grafton) to 29.9% in 50444 (Hanlontown) — the breadth of educational profiles across the area.
Within Iowa, this is the #90 most populous of 99 counties and ranks #27 for median household income .
Weighted by population, the typical household earns about $76,435 across the county — reflecting what a typical resident sees, not a simple ZIP average.
20.4% of adults age 25+ hold a bachelor's degree or higher (1,039 of 5,102 reporting).
7 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 50459 | Northwood | Standard | 3,045 | $71,618 | 144.2 | 8.9% |
| 50456 | Manly | Standard | 1,699 | $81,339 | 47.0 | -6.4% |
| 50448 | Kensett | Standard | 620 | $62,059 | 63.2 | -15.1% |
| 50446 | Joice | Standard | 476 | $107,000 | 41.7 | -20.3% |
| 50434 | Fertile | Standard | 396 | — | 10.4 | -1.2% |
| 50444 | Hanlontown | Standard | 394 | $78,214 | 20.6 | 5.1% |
| 50440 | Grafton | Standard | 361 | $76,429 | 32.5 | -33.1% |