51009 ZIP Code — Calumet, IA
Obrien County, Iowa
ZIP code 51009 is located in Calumet, Iowa, within Obrien County. It covers approximately 0.27 square miles and serves a population of 166 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 712.
166
population
0.27
sq mi land
Standard
ZIP type
Central (CT)
timezone
51009 ZIP code map
Cities in ZIP code 51009
Below are the cities the US Postal Service accepts for ZIP code 51009. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Calumet | Acceptable |
Demographics
updated 06/2026
| Population | |
|---|---|
| Total population | 166 |
| Population density | 615 / sq mi |
| State FIPS | 19 |
| County FIPS | 141 |
| Geography | |
|---|---|
| Land area | 0.27 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 42.9609 |
| Longitude | -95.5641 |
| Timezone | Central (CT) |
| Area code | 712 |
Total population by age
Gender
Race & ethnicity
Economics
updated 06/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 71.2% | 43.1% | 40.1% |
| $50k – $100k | 15.3% | 37.3% | 33.4% |
| $100k – $200k | 13.6% | 16.5% | 21.5% |
| Over $200k | 0.0% | 3.1% | 5.0% |
Demographics & statistics
166
Population
615
People per sq mi
31.0
Median age
$52,917
Median household income
$29,543
Per capita income
$70,800
Median home value
$525
Median monthly rent
79.7%
Home ownership
25.9%
Poverty rate
3.3%
Unemployment
55
Housing units
7.5%
Bachelor's or higher
Age distribution
Male
Female
8
Under 5
9
12
5–9
14
8
10–14
9
3
15–19
4
3
20–24
3
5
25–34
7
8
35–44
9
8
45–54
11
4
55–59
4
1
60–64
1
10
65–74
12
5
75–84
6
1
85+
1
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 65 | 39.2% |
| 18 and over | 101 | 60.8% |
| 65 and over | 35 | 21.1% |
| Median age | 31.0 years | |
Race & ethnicity
White
88.1%
Hispanic or Latino
5.7%
Other race
5.7%
Two or more races
0.6%
| Group | Count | % |
|---|---|---|
| White | 155 | 88.1% |
| Hispanic or Latino | 10 | 5.7% |
| Other race | 10 | 5.7% |
| Two or more races | 1 | 0.6% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 71.2% | 43.1% | 40.1% |
| $50k – $100k | 15.3% | 37.3% | 33.4% |
| $100k – $200k | 13.6% | 16.5% | 21.5% |
| Over $200k | 0.0% | 3.1% | 5.0% |
$10k–$15k
12.5%
$15k–$25k
10.9%
$25k–$35k
17.2%
$35k–$50k
7.8%
$50k–$75k
21.9%
$75k–$100k
7.8%
$100k–$150k
6.3%
$150k–$200k
12.5%
$200k+
3.1%
| Range | % of households |
|---|---|
| $10k–$15k | 12.5% |
| $15k–$25k | 10.9% |
| $25k–$35k | 17.2% |
| $35k–$50k | 7.8% |
| $50k–$75k | 21.9% |
| $75k–$100k | 7.8% |
| $100k–$150k | 6.3% |
| $150k–$200k | 12.5% |
| $200k+ | 3.1% |
| Median income | $52,917 |
Housing
Home values
Under $50k
37.3%
$50k–$100k
45.1%
$100k–$150k
11.8%
$150k–$200k
3.9%
$200k–$300k
2.0%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $70,800 |
| Median rent / month | $525 |
| Owner occupied | 79.7% |
| Renter occupied | 20.3% |
| Vacant | 5.9% |
| Single-family detached | 100.0% |
| Large apartment buildings | 0.0% |
| Mobile homes | 0.0% |
| Median rooms | 7.1 |
| Avg household size (owned) | 2.10 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 2.9% |
| 2000–2009 | 5.9% |
| 1990–1999 | 2.9% |
| 1980–1989 | 1.5% |
| 1970–1979 | 13.2% |
| 1960–1969 | 2.9% |
| 1950–1959 | 7.4% |
| 1940–1949 | 5.9% |
| 1939 or earlier | 57.4% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 0.0% |
| 2 bedrooms | 22.1% |
| 3 bedrooms | 35.3% |
| 4 bedrooms | 39.7% |
| 5+ bedrooms | 2.9% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 3.1% |
| 1 vehicle | 17.2% |
| 2 vehicles | 54.7% |
| 3 or more | 25.0% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 70.3% |
| Electricity | 18.8% |
| Propane / LP gas | 7.8% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 25 | 39.1% |
| Cohabiting couple | 9 | 14.1% |
| Male householder, no spouse | 8 | 12.5% |
| Female householder, no spouse | 22 | 34.4% |
| Households with children under 18 | 22 | 34.4% |
| Households with seniors (65+) | 28 | 43.8% |
| Average household size | 2.59 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 38.3% | 16.9% |
| Married | 53.2% | 40.7% |
| Separated | 0.0% | 0.0% |
| Widowed | 0.0% | 27.1% |
| Divorced | 8.5% | 15.3% |
Education
Less than 9th grade
0.0%
Some HS, no diploma
4.3%
HS graduate
54.8%
Some college, no degree
20.4%
Associate's degree
12.9%
Bachelor's degree
3.2%
Graduate / professional
4.3%
| Metric | % |
|---|---|
| HS diploma or higher | 95.7% |
| Bachelor's or higher | 7.5% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 1 | 1.9% |
| Kindergarten | 4 | 7.4% |
| Elementary school | 33 | 61.1% |
| High school | 9 | 16.7% |
| College / grad school | 7 | 13.0% |
Employment
Industry of employment
Education & healthcare
32.8%
Agriculture & mining
12.1%
Construction
12.1%
Manufacturing
10.3%
Arts, food & hospitality
8.6%
Retail trade
5.2%
Transportation & utilities
5.2%
Professional & management
5.2%
Public administration
5.2%
Wholesale trade
1.7%
Other services
1.7%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 25.9% |
| Service | 22.4% |
| Sales & office | 8.6% |
| Natural resources & construction | 15.5% |
| Production & transportation | 27.6% |
Employment type
| Type | % |
|---|---|
| Private sector | 86.2% |
| Government | 10.3% |
| Self-employed | 3.4% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 93.0% |
| Carpool | 0.0% |
| Public transit | 0.0% |
| Walk | 1.8% |
| Work from home | 3.5% |
| Other means | 1.8% |
| Avg commute (minutes) | 22.3 |
Poverty
All people
25.9%
Under 18 years
32.3%
18 and over
21.8%
Married-couple families
0.0%
Female-led households
70.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 42.2% |
| Retirement income | 14.1% |
| Supplemental Security | 10.9% |
| Cash public assistance | 3.1% |
| Food stamps / SNAP | 20.3% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 34.9% |
| High blood pressure | 33.2% |
| High cholesterol | 33.3% |
| Diabetes | 9.9% |
| Heart disease | 6.6% |
| Stroke | 3.0% |
| Asthma | 9.2% |
| Arthritis | 24.7% |
| Kidney disease | 2.8% |
| Pulmonary disease | 6.9% |
| Cancer | 7.1% |
| Behavior / access | % |
|---|---|
| Smoking | 17.7% |
| Binge drinking | 21.2% |
| No physical activity | 27.0% |
| Less than 7 hrs sleep | 30.1% |
| Depression | 17.8% |
| Fair or poor health | 12.8% |
| Poor mental health | 13.4% |
| Poor physical health | 9.7% |
| No health insurance | 10.0% |
| Visited doctor (checkup) | 75.1% |
| Visited dentist | 66.8% |
| Cholesterol screening | 88.5% |
| Teeth loss | 12.9% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 9 | 8.9% |
| Disability | % |
|---|---|
| Any disability | 19.9% |
| Under 18 | 7.7% |
| 18–64 years | 18.2% |
| 65 and over | 45.7% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 57.2% |
| Public insurance | 53.6% |
| No insurance | 1.2% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 149 | 89.8% |
| Spanish | 4 | 2.7% |
| Other Indo-European | 4 | 2.7% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 164 | 98.8% |
| Born in same state | 164 | 98.8% |
| Born in different state | 111 | 66.9% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 2 | 1.2% |
| Not a US citizen | 0 | 0.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 16 | 9.6% |
| English | 14 | 8.4% |
| Polish | 7 | 4.2% |
| Ancestry | Count | % |
|---|---|---|
| French | 7 | 4.2% |
| Dutch | 2 | 1.2% |
| Arab | 2 | 1.2% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 38.6% |
| Internet access | 92.2% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 51009
What city is ZIP code 51009 in?
ZIP code 51009 is primarily assigned to Calumet, Iowa.
What county is ZIP code 51009 in?
ZIP code 51009 falls within Obrien County, Iowa.
Is ZIP code 51009 family-oriented?
39% of residents in ZIP code 51009 are under 18, reflecting a younger, family-oriented community.
What is the poverty rate in ZIP code 51009?
26% of residents in ZIP code 51009 live below the poverty line, above the national average.
How educated is the population of ZIP code 51009?
8% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
Does ZIP code 51009 have a large retiree population?
42% of households in ZIP code 51009 receive Social Security income, suggesting a significant retiree or disability population.
What timezone is ZIP code 51009 in?
ZIP code 51009 observes the CST timezone.