| ZIP Codes: | 11 ZIP Codes (11 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Code: | 320 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:37 PM |
| Population: | 43,632 [See All] |
| FIPS: | 27067 |
| CBSA: | Willmar, MN |
| Land Area: | 830 sq mi |
| Water Area: | 66 sq mi |
| Coordinates: | 45.1265, -95.0380 |
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43,632 residents live across 11 ZIPs covering 830 sq mi, served by 11 distinct USPS-recognized cities.
Population moved from 41,826 to 43,632 from 2014 to 2024 — a +4.3% change. 5 ZIPs gained residents, 6 lost.
The county's wealthiest ZIP 56288 (Spicer, $111,021 median) and poorest ZIP 56201 (Willmar, $68,804) are 12.2 miles apart — a 1.6× income gap across local geography.
Median home values vary 2.7× across this county — from $156,700 in 56216 (Blomkest) to $422,300 in 56288 (Spicer).
Density varies 28× across the county — from 7 people/sq mi in 56253 (Lake Lillian) to 186 in 56201 (Willmar).
Educational attainment ranges from 16.1% bachelor's+ in 56253 (Lake Lillian) to 35.6% in 56288 (Spicer) — the breadth of educational profiles across the area.
Within Minnesota, this is the #23 most populous of 93 counties and ranks #20 for median household income .
Weighted by population, the typical household earns about $78,441 across the county — reflecting what a typical resident sees, not a simple ZIP average.
28.0% of adults age 25+ hold a bachelor's degree or higher (8,244 of 29,451 reporting).
11 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.
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.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 56201 | Willmar | Standard | 25,146 | $68,804 | 135.3 | 9.4% |
| 56273 | New London | Standard | 4,956 | $90,122 | 101.5 | 2.7% |
| 56288 | Spicer | Standard | 4,697 | $111,021 | 65.6 | -3.0% |
| 56209 | Atwater | Standard | 2,570 | $86,118 | 105.9 | 14.7% |
| 56282 | Raymond | Standard | 1,471 | $69,896 | 101.2 | 3.0% |
| 56279 | Pennock | Standard | 1,126 | $84,000 | 65.3 | -18.9% |
| 56251 | Kandiyohi | Standard | 949 | $76,917 | 32.0 | -14.0% |
| 56281 | Prinsburg | Standard | 786 | $106,667 | 14.4 | 24.2% |
| 56253 | Lake Lillian | Standard | 740 | $75,391 | 112.6 | -28.9% |
| 56289 | Sunburg | Standard | 599 | $78,958 | 60.1 | -6.1% |
| 56216 | Blomkest | Standard | 592 | $77,059 | 36.2 | -15.2% |