PlainZIP

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
$75,125
Median income
$148,200
Median home value
21.4%
Bachelor's or higher

The verdict

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.

ZIP 56731 lands in the middle-income range, with a median household income of $75,125 (9% below the Minnesota average), while per-capita income is $29,550. Local economic indicators show a 13.9% poverty rate alongside 3.6% unemployment. The typical home here is valued at $148,200 (42% below the state average); renters pay a median of - monthly, and 100.0% of units are owner-occupied.

Educational attainment sits below the national norm: 21.4% of adults hold a bachelor's degree or higher, the median age is 52.1, and the average commute is -. Beyond these figures, 2 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing Kittson County, letting you compare 56731 to its immediate surroundings rather than a national baseline alone.

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

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 56731?

52.1

Median Age

34.3%

Male

65.7%

Female

2.2%

Foreign-Born

White 98.5%
African American 0.0%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 1.5%
Hispanic or Latino 0.0%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$75,125

Median Household Income

-9% vs state

$29,550

Per Capita Income

13.9%

Poverty Rate

3.6%

Unemployment Rate

How ZIP 56731 ranks nationally

Humboldt, MN household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$75,125 Top 45% higher than 55% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US 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 is the education profile here?

High School Graduate or Higher 74.5%
Bachelor's Degree or Higher 21.4%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

66

Total Housing Units

63

Occupied Units

3

Vacant Units

2.17

Avg Household Size

Occupancy Type

Owner 100.0%
Renter 0.0%

$148,200

Median Home Value

-42% vs state

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 →

ZIP 56731 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 56731 ranks #3 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 56731 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 56731 ranks #3 of 3 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
56755 Saint Vincent, MN 102 4.6 mi
56728 Hallock, MN 1,364 8.7 mi

More ZIP Codes in Kittson County

56728 standard
Hallock, MN
Pop: 1,364
56732 standard
Karlstad, MN
Pop: 1,136
56735 standard
Lancaster, MN
Pop: 816
56734 standard
Lake Bronson, MN
Pop: 467
56733 standard
Kennedy, MN
Pop: 390
56729 standard
Halma, MN
Pop: 140

Related Areas

Kittson County Humboldt, MN Minnesota

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.
What is the median household income in ZIP 56731? ▼
The median household income in ZIP 56731 is $75,125, which is 2% below the national average of $76,288.
What is the average home value in ZIP 56731? ▼
The median home value in ZIP 56731 is $148,200, which is 47% below the national average of $278,155.
What is the demographic makeup of ZIP 56731? ▼
The largest racial group in ZIP 56731 is White at 98.5%.
How many businesses are in ZIP code 56731? ▼
ZIP code 56731 has 3 business establishments employing approximately 8 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 56731? ▼
In ZIP code 56731, 74.5% of residents aged 25+ have a high school diploma or higher, and 21.4% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the poverty rate in ZIP code 56731? ▼
The poverty rate in ZIP code 56731 is 13.9% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.