Zip Code 56137 — Heron Lake, MN
56137 is a ZIP Code associated with Heron Lake, MN, located within Jackson. 56137 ranks #3 out of 6 ZIP codes in Jackson County by population (and #560 out of 881 in MN). The area supports an estimated population of 1,039 residents across Data Pending housing units, with a population density of 3.6 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (43.832460, -95.324240)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 56137 |
| Primary City | Heron Lake |
| State / Province | MN |
| County | Jackson |
| Total Population | 1,039 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 3.6 people/sq mi |
| Timezone | America/Chicago |
How 56137 Compares
| Metric | ZIP 56137 | Jackson County | MN State Average |
|---|
| Population | 1,039 | 9,617 (Total) | 5,739,754 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 3.6 /sq mi | -- | -- |
| County Pop Rank | #3 of 6 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →