Residential delivery area · Minnesota
ZIP Code 56037: Good Thunder, MN
ZIP code 56037 uses the postal name Good Thunder, Minnesota and lies entirely in Blue Earth County (Census 2020 ZIP-county file). About 1,400 people live there (Census Bureau, ACS 2020-2024). Median household income is $78,750 (Census Bureau, ACS 2020-2024). By Census place, under 1% of its land lies in Good Thunder; more than 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Good Thunder · its only residential ZIP
- County
- Blue Earth County
- Census places
- Good Thunder
- Metro area
- Mankato, MN
- House district
- MN-1 119th Congress
- State
- Minnesota
- Time zone
- Central
- Land area
- 74.0 sq mi · 19 people per sq mi
Where is ZIP code 56037?
56037 centers on 44.011°, -94.039° and covers 74.0 square miles of land plus 0.7 of water. It borders 5 ZIP codes: 56034, 56065, 56001, 56090, 56010.
The map draws ZIP code areas only. For the streets inside 56037, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 56037 compare with the rest of Blue Earth County?
| Measure | 56037 | In Blue Earth County | In MN |
|---|---|---|---|
| People (ACS 2020-2024) | 1,374 | 10th of 19 | 492nd of 881 |
| Median household income | $79k | 9th of 14 | 297th of 545 |
| Median home value | $258k | 5th of 14 | 315th of 558 |
Its median household income is higher than in 60% of U.S. residential ZIP codes, and it is denser than 25% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 56037?
The 2020 Census counted 1,589 people in 56037; the ACS, which samples households over 2020-2024, estimates 1,374. Between the 2010 and 2020 censuses its population fell 2.8% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 1,374
- 2020 Census count
- 1,589−2.8% since 2010 (1,635)
- Households
- 624
- Median age
- 51.2
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 56037?
Of the 1,374 people the ACS estimates in 56037, 17.9% are under 18 and 23.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (93.4%).
- Under 1817.9%
- 18 to 6459.0%
- 65 and older23.1%
- White, not Hispanic93.4%
- Hispanic or Latino3.1%
- Other or two or more2.8%
- Black, not Hispanic0.4%
- Asian, not Hispanic0.3%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 56037 earn?
Median household income is $78,750 (ACS 2020-2024), the 9th highest of the 14 ranked ZIP codes in Blue Earth County. It is not measurably different from 2015-2019 ($88,650 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $78,750±$13,759
- Income per person
- $47,657
- Below the poverty line
- 4.8%
- Unemployed (of the labor force)
- 2.3%
- Adults 25+ with a bachelor's degree
- 26.9%
- Adjusted gross income per tax return, 2022
- $80,088770 returns; wages 63% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 56037?
FHFA's house price index for 56037, built from repeat sales and appraisals of the same homes, rose 89% from 2015 to 2025 and rose 61% from 2020 to 2025.
- Median home value (owners' estimate)
- $258,400
- Median gross rent
- $758
- Homes owned by their occupants
- 88.5%
- Housing units
- 682
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 56037?
30 business establishments had a location in this ZIP code in 2023, 4 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction11
- Administrative and support and waste management and remediation services6
- Other services (except public administration)5
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 56037?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 56034 | Garden City | 393 | $99k | 7.2 mi |
| 56065 | Mapleton | 2,766 | $93k | 8.5 mi |
| 56001 | Mankato | 51,585 | $70k | 8.6 mi |
| 56090 | Vernon Center | 596 | $74k | 10.2 mi |
| 56010 | Amboy | 1,159 | $80k | 11.1 mi |
| 56080 | Saint Clair | 672 | $105k | 10.2 mi (near) |
| 56055 | Lake Crystal | 3,898 | $91k | 12.7 mi (near) |
| 56024 | Eagle Lake | 3,647 | $95k | 13.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.