| ZIP Codes: | 14 ZIP Codes (13 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Codes: | 507 / 924 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:38 PM |
| Population: | 40,368 [See All] |
| FIPS: | 27099 |
| CBSA: | Austin, MN |
| Land Area: | 739 sq mi |
| Water Area: | 0 sq mi |
| Coordinates: | 43.6751, -92.7525 |
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40,368 residents live across 14 ZIPs covering 739 sq mi, served by 14 distinct USPS-recognized cities.
Population moved from 39,525 to 40,368 from 2014 to 2024 — a +2.1% change. 7 ZIPs gained residents, 7 lost.
The county's wealthiest ZIP 55973 (Sargeant, $110,417 median) and poorest ZIP 55933 (Elkton, $56,250) are 12.3 miles apart — a 2.0× income gap across local geography.
Median home values vary 1.9× across this county — from $163,700 in 55918 (Brownsdale) to $317,700 in 55967 (Racine).
Density varies 19× across the county — from 8 people/sq mi in 55973 (Sargeant) to 151 in 55912 (Austin).
Educational attainment ranges from 14.8% bachelor's+ in 55953 (Lyle) to 33.9% in 55909 (Adams) — the breadth of educational profiles across the area.
Within Minnesota, this is the #25 most populous of 93 counties and ranks #26 for median household income .
Weighted by population, the typical household earns about $74,222 across the county — reflecting what a typical resident sees, not a simple ZIP average.
23.8% of adults age 25+ hold a bachelor's degree or higher (6,382 of 26,847 reporting).
13 Standard delivery, 1 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.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 55912 | Austin | Standard | 29,632 | $70,177 | 196.0 | 2.6% |
| 55936 | Grand Meadow | Standard | 1,785 | $85,114 | 83.7 | -1.9% |
| 55909 | Adams | Standard | 1,387 | $96,736 | 57.1 | -3.4% |
| 55951 | Le Roy | Standard | 1,385 | $61,131 | 77.0 | 4.1% |
| 55918 | Brownsdale | Standard | 1,084 | $78,523 | 24.9 | 0.3% |
| 55970 | Rose Creek | Standard | 1,068 | $85,000 | 56.3 | -1.4% |
| 55967 | Racine | Standard | 1,001 | $109,583 | 36.3 | 3.4% |
| 55953 | Lyle | Standard | 901 | $72,500 | 37.0 | 8.2% |
| 55926 | Dexter | Standard | 799 | $100,000 | 62.3 | 18.0% |
| 55982 | Waltham | Standard | 551 | $102,344 | 27.6 | 24.9% |
| 55973 | Sargeant | Standard | 251 | $110,417 | 31.0 | -23.0% |
| 55933 | Elkton | Standard | 215 | $56,250 | 24.6 | -23.8% |
| 55977 | Taopi | Standard | 180 | $61,250 | 24.7 | -15.5% |
| 55950 | Lansing | PO Box | 129 | $61,250 | 0.2 | -18.9% |