Where does this demographic data come from?

All demographic data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates, which samples about 3.5 million households annually. The 5-year estimates provide the most reliable data for small geographies like municipalities.

What is the difference between Census data and ACS data?

The decennial Census (conducted every 10 years) is a full population count focusing on basic demographics. The ACS is an ongoing survey that collects detailed data on income, education, housing, commute patterns, and more. ACS data is updated annually but represents averages over a 5-year period.

How accurate is this data for small towns?

For smaller municipalities, ACS estimates have wider margins of error because fewer residents are sampled. The 5-year estimates reduce this uncertainty by averaging over a longer period. For towns under 5,000 people, treat specific numbers as approximations rather than precise counts.

Calamus, IA Population, Income & Demographics 2026

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Demographics — 2024 ACS 5-Year Estimatesi

Census

Populationi

417

Median Agei

39.3

Race & Ethnicityi

White

93.5%390

Two or More

5.5%23

Hispanic/Latino

0.7%3

American Indian/Alaska Native

0.2%1

Educational Attainment (Age 25+)i

GED/Alternative

2.5%7

High School Diploma

37.9%107

Some College (<1 yr)

7.8%22

Some College (1+ yr)

12.8%36

Associate's Degree

17.7%50

Bachelor's Degree

16.3%46

Master's Degree

2.5%7

HS or Higher

97.5%

BA or Higher

18.8%

Graduate+

2.5%

Housingi

Median Home Valuei

$148,100

Median Renti

$641

Tenure

Owner-Occupied

91.2%156

Renter-Occupied

8.8%15

Total Units

175

Homeownership

91.2%

Vacancy Rate

2.3%

Home Values

Under $50K

7.1%11

$50K–$100K

23.7%37

$100K–$150K

19.9%31

$150K–$200K

32.1%50

$200K–$300K

15.4%24

$300K–$500K

0.6%1

$500K–$1M

1.3%2

Rent Distribution

Under $500

$500–$750

$750–$1,000

$1,000–$1,250

$1,250–$1,500

Year Built

2010–2019

0.6%1

2000–2009

14.9%26

1990–1999

8%14

1980–1989

3.4%6

1970–1979

7.4%13

1960–1969

4.6%8

1950–1959

16.6%29

1940–1949

9.7%17

1939 or earlier

34.9%61

Heating Fuel

Utility Gas

75.4%129

Electricity

12.3%21

Bottled/LP Gas

9.9%17

Fuel Oil

1.2%2

Wood

0.6%1

Solar

0.6%1

Economyi

Median Household Incomei

$68,250

Mean Household Incomei

$74,654

Per Capita Incomei

$30,440

Poverty Ratei

2.9%

Unemploymenti

1.5%

Labor Forcei

203

Household Income Distribution

$10K–$15K

3.5%6

$15K–$20K

4.1%7

$20K–$25K

1.8%3

$25K–$30K

1.8%3

$35K–$40K

9.4%16

$40K–$45K

4.7%8

$45K–$50K

5.3%9

$50K–$60K

9.4%16

$60K–$75K

17%29

$75K–$100K

16.4%28

$100K–$125K

18.1%31

$125K–$150K

3.5%6

$150K–$200K

3.5%6

$200K+

1.8%3

Federally Subsidized Housingi

HUD

The federal government helps low-income families, seniors, and people with disabilities afford housing through several programs. Residents typically pay about 30% of their income toward rent, with the government covering the rest. This data shows how many households in this community receive that assistance.

Subsidized Homesi

Programs in this community

Housing Choice Vouchers1 homes

Rental vouchers (Section 8) that help tenants pay for private-market housing

Ancestry & Heritage

Self-reported ancestry groups. Residents may report multiple ancestries, so totals may exceed 100%.

Commute & Transportationi

Workersi

195

Avg. Commutei

38.2 min

How People Get to Work

Travel Time to Work

Workforce

Total Employed

200

Occupations

Industries

Social Characteristicsi

Marital Status (15+)i

Veteransi

31(9.9% of civilian adults)

Health Insurancei

95.7%Insured

4.3%Uninsured