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.

Mariemont, OH Population, Income & Demographics 2026

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Demographics — 2024 ACS 5-Year Estimatesi

Census

Populationi

3,474

Median Agei

41.1

Race & Ethnicityi

White

95.7%3,324

Two or More

2%69

Black

1.5%52

Asian

0.6%20

Other

0.3%9

Educational Attainment (Age 25+)i

GED/Alternative

2.5%57

High School Diploma

4.4%100

Some College (<1 yr)

3.5%81

Some College (1+ yr)

5.4%124

Associate's Degree

4.7%109

Bachelor's Degree

31.4%721

Master's Degree

23.5%541

Professional Degree

6.7%153

Doctorate

15.7%361

HS or Higher

97.8%

BA or Higher

77.3%

Graduate+

45.9%

Housingi

Median Home Valuei

$607,600

Median Renti

$1,487

Tenure

Owner-Occupied

74.6%1,019

Renter-Occupied

25.4%347

Total Units

1,477

Homeownership

74.6%

Vacancy Rate

7.5%

Home Values

Under $50K

0.7%7

$50K–$100K

0.9%9

$100K–$150K

0.5%5

$150K–$200K

1.1%11

$200K–$300K

2.6%27

$300K–$500K

35.4%361

$500K–$1M

39.1%398

$1M+

19.7%201

Rent Distribution

$500–$750

$750–$1,000

$1,000–$1,250

$1,250–$1,500

$1,500–$2,000

127

$2,000+

Year Built

2010–2019

9.6%142

2000–2009

2.5%37

1980–1989

1.1%16

1970–1979

3%45

1960–1969

5%74

1950–1959

15.6%231

1940–1949

26.3%388

1939 or earlier

36.8%544

Heating Fuel

Utility Gas

78.2%1,068

Electricity

19.1%261

Fuel Oil

1%14

Bottled/LP Gas

1%13

Other

0.7%10

Economyi

Median Household Incomei

$152,273

Mean Household Incomei

$232,201

Per Capita Incomei

$93,027

Poverty Ratei

3.8%

Unemploymenti

1.9%

Labor Forcei

1,711

Household Income Distribution

Under $10K

5.6%76

$10K–$15K

0.5%7

$20K–$25K

1%14

$25K–$30K

2%28

$30K–$35K

1.1%15

$35K–$40K

0.9%12

$40K–$45K

4.5%61

$45K–$50K

3.8%52

$50K–$60K

1.9%26

$60K–$75K

4.5%61

$75K–$100K

7.7%105

$100K–$125K

13.8%189

$125K–$150K

2%27

$150K–$200K

12.2%166

$200K+

38.6%527

Commute & Transportationi

Workersi

1,616

Avg. Commutei

21.7 min

How People Get to Work

Travel Time to Work

Workforce

Total Employed

1,679

Occupations

Industries

Social Characteristicsi

Marital Status (15+)i

Veteransi

49(2% of civilian adults)