50552 ZIP Code — Knierim, IA
Calhoun County, Iowa
ZIP code 50552 is located in Knierim, Iowa, within Calhoun County. It covers approximately 0.50 square miles and serves a population of 75 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 515.
75
population
0.50
sq mi land
Standard
ZIP type
Central (CT)
timezone
50552 ZIP code map
Cities in ZIP code 50552
Below are the cities the US Postal Service accepts for ZIP code 50552. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Knierim | Acceptable |
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 75 |
| Population density | 150 / sq mi |
| State FIPS | 19 |
| County FIPS | 025 |
| Geography | |
|---|---|
| Land area | 0.50 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 42.4431 |
| Longitude | -94.4754 |
| Timezone | Central (CT) |
| Area code | 515 |
Total population by age
Gender
Race & ethnicity
Demographics & statistics
75
Population
150
People per sq mi
49.8
Median age
$82,750
Median household income
$37,733
Per capita income
$71,300
Median home value
$0
Median monthly rent
87.9%
Home ownership
5.3%
Poverty rate
0.0%
Unemployment
39
Housing units
40.0%
Bachelor's or higher
Age distribution
Male
Female
1
5–9
1
3
10–14
3
6
15–19
6
2
25–34
2
3
35–44
3
11
45–54
11
2
60–64
2
7
65–74
8
1
75–84
2
0
85+
1
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 17 | 22.7% |
| 18 and over | 58 | 77.3% |
| 65 and over | 19 | 25.3% |
| Median age | 49.8 years | |
Race & ethnicity
White
94.8%
Hispanic or Latino
2.6%
Two or more races
2.6%
| Group | Count | % |
|---|---|---|
| White | 73 | 94.8% |
| Hispanic or Latino | 2 | 2.6% |
| Two or more races | 2 | 2.6% |
Household income
Under $10k
3.0%
$10k–$15k
9.1%
$25k–$35k
6.1%
$35k–$50k
12.1%
$50k–$75k
18.2%
$75k–$100k
18.2%
$100k–$150k
18.2%
$150k–$200k
9.1%
$200k+
6.1%
| Range | % of households |
|---|---|
| Under $10k | 3.0% |
| $10k–$15k | 9.1% |
| $25k–$35k | 6.1% |
| $35k–$50k | 12.1% |
| $50k–$75k | 18.2% |
| $75k–$100k | 18.2% |
| $100k–$150k | 18.2% |
| $150k–$200k | 9.1% |
| $200k+ | 6.1% |
| Median income | $82,750 |
Housing
Home values
Under $50k
48.3%
$50k–$100k
13.8%
$100k–$150k
17.2%
$150k–$200k
10.3%
$200k–$300k
10.3%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $71,300 |
| Median rent / month | $0 |
| Owner occupied | 87.9% |
| Renter occupied | 12.1% |
| Vacant | 23.3% |
| Single-family detached | 100.0% |
| Large apartment buildings | 0.0% |
| Mobile homes | 0.0% |
| Median rooms | 5.9 |
| Avg household size (owned) | 2.45 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 2.3% |
| 2000–2009 | 0.0% |
| 1990–1999 | 7.0% |
| 1980–1989 | 7.0% |
| 1970–1979 | 0.0% |
| 1960–1969 | 16.3% |
| 1950–1959 | 4.7% |
| 1940–1949 | 11.6% |
| 1939 or earlier | 51.2% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 7.0% |
| 2 bedrooms | 18.6% |
| 3 bedrooms | 48.8% |
| 4 bedrooms | 11.6% |
| 5+ bedrooms | 14.0% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 0.0% |
| 1 vehicle | 30.3% |
| 2 vehicles | 36.4% |
| 3 or more | 33.3% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 15.2% |
| Propane / LP gas | 78.8% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 18 | 54.5% |
| Cohabiting couple | 2 | 6.1% |
| Male householder, no spouse | 9 | 27.3% |
| Female householder, no spouse | 4 | 12.1% |
| Households with children under 18 | 11 | 33.3% |
| Households with seniors (65+) | 10 | 30.3% |
| Average household size | 2.27 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 38.7% | 30.6% |
| Married | 51.6% | 58.3% |
| Separated | 0.0% | 0.0% |
| Widowed | 3.2% | 11.1% |
| Divorced | 6.5% | 0.0% |
Education
Less than 9th grade
1.8%
Some HS, no diploma
0.0%
HS graduate
30.9%
Some college, no degree
18.2%
Associate's degree
9.1%
Bachelor's degree
14.5%
Graduate / professional
25.5%
| Metric | % |
|---|---|
| HS diploma or higher | 98.2% |
| Bachelor's or higher | 40.0% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 0 | 0.0% |
| Kindergarten | 0 | 0.0% |
| Elementary school | 8 | 40.0% |
| High school | 12 | 60.0% |
| College / grad school | 0 | 0.0% |
Employment
Industry of employment
Retail trade
21.7%
Agriculture & mining
19.6%
Education & healthcare
17.4%
Finance & real estate
13.0%
Information
8.7%
Arts, food & hospitality
6.5%
Manufacturing
4.3%
Wholesale trade
4.3%
Construction
2.2%
Professional & management
2.2%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 47.8% |
| Service | 8.7% |
| Sales & office | 21.7% |
| Natural resources & construction | 17.4% |
| Production & transportation | 4.3% |
Employment type
| Type | % |
|---|---|
| Private sector | 65.2% |
| Government | 15.2% |
| Self-employed | 19.6% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 95.7% |
| Carpool | 2.2% |
| Public transit | 0.0% |
| Walk | 0.0% |
| Work from home | 2.2% |
| Other means | 0.0% |
| Avg commute (minutes) | 23.3 |
Poverty
All people
5.3%
Under 18 years
0.0%
18 and over
6.9%
Married-couple families
0.0%
Female-led households
0.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 36.4% |
| Retirement income | 15.2% |
| Supplemental Security | 0.0% |
| Cash public assistance | 15.2% |
| Food stamps / SNAP | 0.0% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 0.0% |
| High blood pressure | 0.0% |
| High cholesterol | 0.0% |
| Diabetes | 0.0% |
| Heart disease | 0.0% |
| Stroke | 0.0% |
| Asthma | 0.0% |
| Arthritis | 0.0% |
| Kidney disease | 0.0% |
| Pulmonary disease | 0.0% |
| Cancer | 0.0% |
| Behavior / access | % |
|---|---|
| Smoking | 0.0% |
| Binge drinking | 0.0% |
| No physical activity | 0.0% |
| Less than 7 hrs sleep | 0.0% |
| Depression | 0.0% |
| Fair or poor health | 0.0% |
| Poor mental health | 0.0% |
| Poor physical health | 0.0% |
| No health insurance | 0.0% |
| Visited doctor (checkup) | 0.0% |
| Visited dentist | 0.0% |
| Cholesterol screening | 0.0% |
| Teeth loss | 0.0% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 1 | 1.7% |
| Disability | % |
|---|---|
| Any disability | 14.7% |
| Under 18 | 17.6% |
| 18–64 years | 17.9% |
| 65 and over | 5.3% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 89.3% |
| Public insurance | 29.3% |
| No insurance | 5.3% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 75 | 100.0% |
| Spanish | 0 | 0.0% |
| Other Indo-European | 0 | 0.0% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 75 | 100.0% |
| Born in same state | 75 | 100.0% |
| Born in different state | 60 | 80.0% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 0 | 0.0% |
| Not a US citizen | 0 | 0.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 8 | 10.7% |
| Arab | 8 | 10.7% |
| Polish | 6 | 8% |
| Ancestry | Count | % |
|---|---|---|
| French | 3 | 4% |
| English | 1 | 1.3% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 44.0% |
| Internet access | 81.8% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 50552
What city is ZIP code 50552 in?
ZIP code 50552 is primarily assigned to Knierim, Iowa.
What county is ZIP code 50552 in?
ZIP code 50552 falls within Calhoun County, Iowa.
Does ZIP code 50552 have an older population?
25% of residents in ZIP code 50552 are 65 or older, above the national average of ~17%.
Is ZIP code 50552 mostly owner-occupied?
88% of occupied units in ZIP code 50552 are owner-occupied, well above the national average.
Does ZIP code 50552 have a large retiree population?
36% of households in ZIP code 50552 receive Social Security income, suggesting a significant retiree or disability population.
What is the typical home value in ZIP code 50552?
The median home value in ZIP code 50552 is $71,300.
What timezone is ZIP code 50552 in?
ZIP code 50552 observes the CST timezone.