Humboldt, MN · standard
ZIP Code 56731
Kittson County, Minnesota - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 93
- 1/sq mi Low-density area
- $75,125
- Median income Near-median income area
- $148,200
- Median home value Below-median home value
- 21.4%
- Bachelor's or higher Near-average bachelor's attainment
National ZIP placement
Humboldt pairs an above-median household income with below-median home values, in a rural, homeowner-dominated area.
- Top 45%
- household income, US ZIPs
- 25th pct
- home value, US ZIPs
- 1
- people per sq mi
- 100%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 56731 against every reporting US ZIP.
ZIP code 56731 is a sparsely populated ZIP (a standard USPS delivery area) in Humboldt, Kittson County, Minnesota, home to just 93 residents across 93.0 square miles, a density of 1 people per square mile, in the Chicago time zone.
With fewer than 100 residents on file, this page keeps the Census figures below and skips the multi-chart expansion used on larger ZIPs. Small-N ACS estimates are already unstable enough without padding the page around them. Median household income is $75,125.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 56731, Humboldt, MN · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
93
Population
93.0
Area (sq mi)
1
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 56731?
52.1
Median Age
34.3%
Male
65.7%
Female
2.2%
Foreign-Born
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$75,125
Median Household Income
-9% vs state ZIP avg
$29,550
Per Capita Income
13.9%
Poverty Rate
3.6%
Unemployment Rate
How ZIP 56731 ranks among Minnesota ZIPs
Humboldt, MN household income vs. every Minnesota ZIP code
Median household income among 864 reporting Minnesota ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$75,125 44th percentile higher than 44% of 864 Minnesota ZIPs
Each bar is a $20K-wide band; taller bars hold more Minnesota ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
66housing units
66
Total Housing Units
63
Occupied Units
3
Vacant Units
2.17
Avg Household Size
Occupancy Type
$148,200
Median Home Value
-42% vs state ZIP avg
1959
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 3 business establishments in ZIP 56731, employing approximately 8 people with a combined annual payroll of $859,000.
3
Businesses
8
Employees
$859K
Annual Payroll
0
Industry Sectors
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 56731 vs 56755 →
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 56731, both outside MN so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
Related Areas
Frequently Asked Questions
What county is ZIP code 56731 in?
ZIP code 56731 (Humboldt) is located in Kittson County, Minnesota. Kittson County contains multiple ZIP codes, see the full list at /counties/kittson-mn.
What is the population of ZIP code 56731?
ZIP code 56731 in Humboldt, MN has a population of 93 according to the Census Bureau ACS 2023 estimates.
Take this with you
What to do with ZIP 56731's numbers, next.
- See how ZIP 56731 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Humboldt, MN ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.