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.

Byrnes Mill, MO Population, Income & Demographics 2026

CSASt. Louis-St. Charles-Farmington MSASt. Louis#46/265 Home Value

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Demographics — 2024 ACS 5-Year Estimatesi

Census

Populationi

3,189

Median Agei

37.9

Race & Ethnicityi

White

85.4%2,725

Two or More

12.2%390

Black

1.9%60

Hispanic/Latino

0.4%14

Educational Attainment (Age 25+)i

GED/Alternative

6.9%154

High School Diploma

20.9%469

Some College (<1 yr)

11%247

Some College (1+ yr)

15.7%353

Associate's Degree

14.4%322

Bachelor's Degree

13.6%304

Master's Degree

7.9%177

Doctorate

3%67

HS or Higher

93.4%

BA or Higher

24.4%

Graduate+

10.9%

Housingi

Median Home Valuei

$306,200

Median Renti

$1,137

Tenure

Owner-Occupied

81.3%976

Renter-Occupied

18.7%224

Total Units

1,232

Homeownership

81.3%

Vacancy Rate

2.6%

Home Values

Under $50K

23.4%228

$100K–$150K

5.4%53

$150K–$200K

2%20

$200K–$300K

17.4%170

$300K–$500K

51.7%505

Rent Distribution

$500–$750

$750–$1,000

$1,000–$1,250

181

$1,250–$1,500

$2,000+

Year Built

2020 or later

2.4%30

2010–2019

18.3%225

2000–2009

20.7%255

1990–1999

28.7%353

1980–1989

1.3%16

1970–1979

11%136

1960–1969

6.2%77

1950–1959

3.2%39

1940–1949

3.9%48

1939 or earlier

4.3%53

Heating Fuel

Electricity

86.8%1,041

Wood

6.3%76

Utility Gas

5.4%65

Bottled/LP Gas

1%12

Other

0.5%6

Economyi

Median Household Incomei

$98,576

Mean Household Incomei

$107,382

Per Capita Incomei

$41,320

Poverty Ratei

21.1%

Unemploymenti

9.8%

Labor Forcei

1,479

Household Income Distribution

Under $10K

2.2%27

$15K–$20K

10.9%131

$30K–$35K

0.3%4

$35K–$40K

10.2%122

$40K–$45K

6.5%78

$45K–$50K

0.2%3

$50K–$60K

8.7%104

$60K–$75K

5.7%68

$75K–$100K

9.3%112

$100K–$125K

5.5%66

$125K–$150K

14.7%176

$150K–$200K

14.5%174

$200K+

11.2%135

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

1,334

Avg. Commutei

38.1 min

How People Get to Work

Travel Time to Work

Workforce

Total Employed

1,334

Occupations

Industries

Social Characteristicsi

Marital Status (15+)i

Veteransi

175(7.3% of civilian adults)

Health Insurancei

88.1%Insured

11.9%Uninsured