Mariemont, OH demographics:
population, income, and more

Total population
3,474
-0.1% year-over-year change
Median household income
$152,273/yr
-0.8% year-over-year change
Housing units
1,477
-1.7% year-over-year change

Mariemont population

How many people live in Mariemont

Mariemont is home to 3,474 residents, according to the most recent Census data. Gender-wise, 53.7% of Mariemont locals are male, and 46.3% are female.

Total population
3,474
-0.1% year-over-year change
Gender ratio
Male
53.7%
1,864
Female
46.3%
1,610
Value Percent YoY change
Male 1,864 53.7% 0.9%
Female 1,610 46.3% -1.2%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Mariemont is 41, with the population distributed as follows: about 24.7% are children under 15, then 9.2% are in the 15 to 24 age group. Adults between 25 and 44 make up 23.8% of the population, while another 27.9% fall into the 45 to 64 bracket. Finally, around 14.5% are 65 or older.

Median age
41.1
Age breakdown
Under 15
24.7%
15 to 24
9.2%
25 to 44
23.8%
45 to 64
27.9%
Over 65
14.5%
Value Percent YoY change
Under 15 858 24.7% -2.7%
15 to 24 318 9.2% 3.2%
25 to 44 825 23.8% -3.1%
45 to 64 970 27.9% 3.4%
Over 65 503 14.5% 1.0%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Mariemont, 94.3% of the population are US-born citizens, while 2.3% have gained naturalized citizenship. At the same time, 3.4% of residents are non-citizens. As for race, 95.7% of locals are Caucasian, 1.5% are African American and 0.6% have Asian roots. There’s also a share of 2% that includes residents with two or more races.

Citizenship
U.S.-born citizens
94.3%
Non-U.S.-born citizens
2.3%
Non-citizens
3.4%
Value Percent YoY change
U.S.-born citizens 3,277 94.3% -1.9%
Non-U.S.-born citizens 79 2.3% 25.4%
Non-citizens 118 3.4% 63.9%
Racial breakdown
White
95.7%
Black or African American
1.5%
American Indian and Alaska Native
0%
Asian
0.6%
Native Hawaiian and other Pacific Islander
0%
Two or more races
2%
Other
0.3%
Value Percent
White 3,324 95.7%
Black or African American 52 1.5%
Asian 20 0.6%
Two or more races 69 2%
Other 9 0.3%

Households in Mariemont

A peek inside Mariemont households

Mariemont has 1,366 households, with an average of 2 members in each. Of these, 61.2% are families, while the remaining 38.8% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
1,366
2.9% year-over-year change
Average people per household
2
Non-family households
530
Family households
836
Value Percent YoY change
Non-family households 530 38.8% 17.5%
Family households 836 61.2% -4.6%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Mariemont

The housing landscape of Mariemont

Mariemont's housing consists of 1,477 units, with 59.9% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 8.5% and offer a more compact, shared living style.

Housing units
1,477
-1.7% year-over-year change
Housing types
Value Percent
1 unit, detached 885 59.9%
1 unit, attached 126 8.5%
2 units 21 1.4%
3 or 4 units 156 10.6%
5 to 9 units 80 5.4%
10 to 19 units 50 3.4%
20 to 49 units 113 7.6%
50 or more units 46 3.1%
Homes built since 2020
0
% year-over-year change

The age of buildings in Mariemont

In Mariemont, the median construction year is 1945. About 36.8% of homes were built before the 1940s, with another 26.3% going up by 1949. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 544 36.8% -5.9%
Built between 1940 and 1949 388 26.3% 32.4%
Built between 1950 and 1959 231 15.6% -23.0%
Built between 1960 and 1969 74 5% -30.8%
Built between 1970 and 1979 45 3% 275.0%
Built between 1980 and 1989 16 1.1% -27.3%
Built between 2000 and 2009 37 2.5% 48.0%
Built between 2010 and 2019 142 9.6% -14.5%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Mariemont occupancy rates

Out of the 1,366 occupied housing units in Mariemont, 74.6% are owner-occupied, while 25.4% are lived in by tenants. Meanwhile, 7.5% of all homes on the local market sit vacant.

Occupied housing units
1,366
2.9% year-over-year change
Occupancy breakdown
Renter occupied
347
Owner occupied
1,019
Value Percent YoY
change
Renter occupied 347 25.4% -2.8%
Owner occupied 1,019 74.6% 5.0%
Unoccupied housing units
7.5%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Mariemont housing costs

Housing costs in Mariemont come to a median of $2,250 per month, while tenants specifically pay a median gross rent of $1,487.

Median housing costs per month
$2,250/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Mariemont
$1,487/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Mariemont

Mariemont education at a glance

About 12.3% of the population in Mariemont went to high school, while 8.8% pursued college studies. Another 4.5% earned an associate degree and 31% hold a bachelor’s. Meanwhile, 43.3% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 6 0.2% N/A
High school diploma 300 12.3% 15.4%
College diploma 214 8.8% 1.4%
Associate degree 109 4.5% 0.9%
Bachelor's degree 755 31% -7.8%
Graduate degree 1,055 43.3% 4.6%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Mariemont

How much people earn in Mariemont

The average annual household income in Mariemont was $232,201 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +5.1% change from the previous year. At the same time, the median income stood at $152,273, reflecting a -0.8% shift over the same period.

Average household income in Mariemont
$232,201/year
5.1% year-over-year change
Median household income in Mariemont
$152,273/year
-0.8% year-over-year change

Mariemont income by age

In Mariemont, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $168,438. Those with someone between 45 and 64 in charge, often well established professionally, earn $171,550 overall. Overall, 96% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $168,438 9.3%
45 - 64 $171,550 1.6%
Over 65 $95,368 19.8%
Above poverty level
3,162
Below poverty level
133
Value Percent YoY
change
Above poverty level 3,162 96% -4.0%
Below poverty level 133 4% 177.1%

Average renter income in Mariemont

To get a better sense of what renters earn on average in Mariemont, their median household income was $65,964 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 27.1%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$65,964
Rent-to-income ratio
27.1%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in Mariemont

Workforce and job types in Mariemont

The job market in Mariemont is powered by 1,679 working residents, spread across a range of industries and roles. 95.6% of the working population are employed in professional or administrative positions, while 4.4% are in hands-on or service-based jobs. Also, 9% run their own businesses, 59.6% are employed by private companies, and 14.1% work in the public sector.

Workforce demographics

Working population
1,679
2.0% year-over-year change
White collar
1,605
Blue collar
74
Value Percent YoY change
White collar 1,605 95.6% 1.8%
Blue collar 74 4.4% 5.7%
Employer type
Self employees
9%
Private companies
59.6%
Governmental workers
14.1%
Not for profit companies
17.3%
Value Percent YoY change
Self employees 152 9% 3.4%
Private companies 1,000 59.6% 3.4%
Governmental workers 237 14.1% 8.7%
Not for profit companies 290 17.3% -7.6%
Unemployment rate
1.9%
-8.6% year-over-year change

Available workforce

The unemployment rate in Mariemont stands at 1.9%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Mariemont

How people get around in Mariemont

Means of transportation
Value Percent YoY change
Car 1,243 76.9% -0.6%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Mariemont by zipcode?

Zipcode Population Number of households Median income Average income
45226 5,796 2,910 $97,558 $157,007
45227 18,893 9,054 $71,646 $118,663

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FAQs about Mariemont demographics 

What is the total population of Mariemont?

Mariemont has a total population of 3,474 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -0.1% compared to a year ago.

What is the gender ratio in Mariemont?

The gender ratio in Mariemont is as follows:
  • 53.7% males (1,864 residents)
  • 46.3% females (1,610 residents)

What is the median age in Mariemont?

The median age in Mariemont is 41.1.

What is the age distribution of the population in Mariemont?

The age distribution in Mariemont is as follows:
  • Under 15: 24.7% (858 residents)
  • Ages 15-24: 9.2% (318 residents)
  • Ages 25-44: 23.8% (825 residents)
  • Ages 45-64: 27.9% (970 residents)
  • Over 65: 14.5% (503 residents)

What is the racial and ethnic makeup of Mariemont?

The racial and ethnic makeup of Mariemont is as follows:
  • White: 95.7% (3,324 residents)
  • Black or African American: 1.5% (52 residents)
  • American Indian and Alaska Native: 0% (0 residents)
  • Asian: 0.6% (20 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 2% (69 residents)
  • Other: 0.3% (9 residents)

What percentage of the population in Mariemont are U.S.-born citizens?

U.S.-born citizens represent 94.3% of the population in Mariemont.

How many housing units are there in Mariemont?

There are 1,477 housing units in Mariemont, reflecting a -1.7% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Mariemont and what is the average household size?

Mariemont has a total of 1,366 households, with an average of 2 people in each.

What is the median household income in Mariemont?

Mariemont has a median household income of $152,273, representing a -0.8% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Mariemont?

The employment rate is 98.1% in Mariemont, with a workforce of 1,679 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 95.6% (1,605 residents)
  • Blue-collar workers: 4.4% (74 residents)

Places of employment:
  • Self-employed: 9% (152 residents)
  • Private companies: 59.6% (1,000 residents)
  • Governmental workers: 14.1% (237 residents)
  • Not-for-profit companies: 17.3% (290 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025