Residential delivery area · Minnesota
ZIP Code 56055: Lake Crystal, MN
ZIP code 56055 uses the postal name Lake Crystal, Minnesota and lies entirely in Blue Earth County (Census 2020 ZIP-county file). About 3,900 people live there (Census Bureau, ACS 2020-2024). Median household income is $90,987 (Census Bureau, ACS 2020-2024). By Census place, 1% of its land lies in Lake Crystal; 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Lake Crystal · its only residential ZIP
- County
- Blue Earth County
- Census places
- Lake Crystal
- Metro area
- Mankato, MN
- House district
- MN-1 119th Congress
- State
- Minnesota
- Time zone
- Central
- Land area
- 118.2 sq mi · 33 people per sq mi
Where is ZIP code 56055?
56055 centers on 44.128°, -94.235° and covers 118.2 square miles of land plus 3.1 of water. It borders 8 ZIP codes: 56034, 56003, 56062, 56021, 56001, 56074, 56041, 56073.
The map draws ZIP code areas only. For the streets inside 56055, 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 56055 compare with the rest of Blue Earth County?
| Measure | 56055 | In Blue Earth County | In MN |
|---|---|---|---|
| People (ACS 2020-2024) | 3,898 | 4th of 19 | 294th of 881 |
| Median household income | $91k | 4th of 14 | 188th of 545 |
| Median home value | $226k | 7th of 14 | 386th of 558 |
Its median household income is higher than in 74% of U.S. residential ZIP codes, and it is denser than 35% 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 56055?
The 2020 Census counted 3,916 people in 56055; the ACS, which samples households over 2020-2024, estimates 3,898. Between the 2010 and 2020 censuses its population grew 0.4% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 3,898
- 2020 Census count
- 3,916+0.4% since 2010 (3,902)
- Households
- 1,645
- Median age
- 41.5
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 56055?
Of the 3,898 people the ACS estimates in 56055, 24.6% are under 18 and 21.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (93.9%).
- Under 1824.6%
- 18 to 6454.2%
- 65 and older21.2%
- White, not Hispanic93.9%
- Hispanic or Latino3.3%
- Other or two or more2.6%
- Black, not Hispanic0.3%
- Asian, not Hispanic0.0%
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 56055 earn?
Median household income is $90,987 (ACS 2020-2024), the 4th highest of the 14 ranked ZIP codes in Blue Earth County. It is not measurably different from 2015-2019 ($85,889 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $90,987±$12,884
- Income per person
- $40,857
- Below the poverty line
- 6.5%
- Unemployed (of the labor force)
- 1.9%
- Adults 25+ with a bachelor's degree
- 32.2%
- Adjusted gross income per tax return, 2022
- $80,7651,950 returns; wages 67% 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 56055?
FHFA's house price index for 56055, built from repeat sales and appraisals of the same homes, rose 71% from 2015 to 2025 and rose 38% from 2020 to 2025, and moved −0.5% in 2025.
- Median home value (owners' estimate)
- $226,100
- Median gross rent
- $848
- Homes owned by their occupants
- 86.0%
- Housing units
- 1,723
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 56055?
92 business establishments had a location in this ZIP code in 2023, 2 fewer than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction18
- Retail trade11
- Health care and social assistance10
- Other services (except public administration)10
- Wholesale trade8
- Transportation and warehousing7
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 56055?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 56034 | Garden City | 393 | $99k | 7.4 mi |
| 56003 | Mankato | 15,258 | $83k | 9.5 mi |
| 56062 | Madelia | 3,234 | $77k | 10.5 mi |
| 56021 | Courtland | 1,108 | $97k | 11.8 mi |
| 56001 | Mankato | 51,585 | $70k | 12.7 mi |
| 56074 | Nicollet | 1,845 | $93k | 13.8 mi |
| 56041 | Hanska | 1,039 | $81k | 14.9 mi |
| 56073 | New Ulm | 17,339 | $70k | 16.9 mi |
| 56090 | Vernon Center | 596 | $74k | 12.2 mi (near) |
| 56037 | Good Thunder | 1,374 | $79k | 12.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.