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.

Armstrong, MO Population, Income & Demographics 2026

Showing latest census year. Full demographic history available with a paid plan. View plans →

Demographics — 2024 ACS 5-Year Estimatesi

Census

Populationi

416

Median Agei

31.8

Race & Ethnicityi

White

92.8%386

Two or More

4.3%18

Black

1.9%8

Hispanic/Latino

1%4

Educational Attainment (Age 25+)i

GED/Alternative

8.4%20

High School Diploma

57.6%137

Some College (<1 yr)

5%12

Some College (1+ yr)

9.7%23

Associate's Degree

6.3%15

Bachelor's Degree

3.8%9

Master's Degree

1.7%4

HS or Higher

92.4%

BA or Higher

5.5%

Graduate+

1.7%

Housingi

Median Home Valuei

$57,500

Median Renti

$913

Tenure

Owner-Occupied

86.3%126

Renter-Occupied

13.7%20

Total Units

207

Homeownership

86.3%

Vacancy Rate

29.5%

Home Values

Under $50K

47.6%60

$50K–$100K

27.8%35

$100K–$150K

12.7%16

$150K–$200K

0.8%1

$200K–$300K

2.4%3

$300K–$500K

7.1%9

$500K–$1M

1.6%2

Rent Distribution

$750–$1,000

$1,000–$1,250

Year Built

2010–2019

1.4%3

2000–2009

11.6%24

1990–1999

9.2%19

1980–1989

2.4%5

1970–1979

20.3%42

1960–1969

3.4%7

1950–1959

6.3%13

1940–1949

6.3%13

1939 or earlier

39.1%81

Heating Fuel

Electricity

43.8%64

Utility Gas

41.8%61

Wood

7.5%11

Bottled/LP Gas

6.8%10

Economyi

Median Household Incomei

$59,063

Mean Household Incomei

$67,309

Per Capita Incomei

$24,771

Poverty Ratei

10.3%

Unemploymenti

3.6%

Labor Forcei

194

Household Income Distribution

Under $10K

5.5%8

$15K–$20K

2.1%3

$25K–$30K

20.5%30

$30K–$35K

1.4%2

$35K–$40K

6.2%9

$40K–$45K

1.4%2

$45K–$50K

3.4%5

$50K–$60K

11.6%17

$60K–$75K

19.9%29

$75K–$100K

19.2%28

$100K–$125K

2.1%3

$125K–$150K

2.1%3

$150K–$200K

0.7%1

$200K+

4.1%6

Ancestry & Heritage

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

Social Characteristicsi

Marital Status (15+)i

Veteransi

14(5.4% of civilian adults)

Health Insurancei

91.6%Insured

8.4%Uninsured