5th most populous of 88
With 537,443 residents in 2024, Montgomery County ranks 5th by population among Ohio's 88 counties and is home to 4.5% of the state's residents.
Montgomery County is home to 537,443 people (2024 estimate) on 461 square miles of land. This page brings together official U.S. Census Bureau population estimates since 2000, the components of change—births, deaths and migration—American Community Survey indicators on income, housing, poverty and education, BEA economic accounts and BLS unemployment.
Key indicators
Population
537,443
July 1, 2024 estimate
2020 Census base
537,301
April 1, 2020
Change since 2020
+0.0%
2020–2024
Land area
461 mi²
1,195 km²
Population density
1,164.9 /mi²
2024 estimate ÷ land area
Births
5,879
Year to July 1, 2024
Deaths
6,450
Year to July 1, 2024
Natural change
−571
Births minus deaths, 2024
Net migration
+2,693
Domestic + international, 2024
Per capita personal income
$60,796
BEA, 2024
Gross domestic product
$40.1 billion
BEA, current dollars, 2024
Median household income
$66,139
ACS 2020–2024 5-year
Poverty rate
15.0%
ACS 2020–2024 5-year
Bachelor’s degree or higher
31.3%
Age 25+, ACS 2020–2024 5-year
Foreign-born residents
5.3%
ACS 2020–2024 5-year
Median home value
$180,900
ACS 2020–2024 5-year
Unemployment rate
4.7%
BLS annual average, 2024
Historical data
Pick an indicator to see its long-run evolution.
Population
2000–2024537,443▼ 4%
U.S. Census Bureau: intercensal estimates 2000–2009, Vintage 2020 (2010–2019) and Vintage 2024 (2020–2024), July 1.
Data summary
| Indicator | Value | Year and source |
|---|---|---|
| Population estimate | 537,443 | 2024 · U.S. Census Bureau |
| Population, 2010 Census | 535,153 | 2010 · U.S. Census Bureau |
| Population, 2000 | 558,522 | July 1, 2000 · Census intercensal |
| Change since 2000 | −3.8% | 2000–2024 · Census |
| International migration | +2,699 | 2024 · Census Vintage 2024 |
| Domestic migration | −6 | 2024 · Census Vintage 2024 |
| Birth rate | 10.9 per 1,000 | 2024 · calculated |
| Death rate | 12.0 per 1,000 | 2024 · calculated |
| Population rank in Ohio | 5th of 88 | 2024 · calculated |
| Per capita personal income | $60,796 | BEA, 2024 · official |
| Gross domestic product | $40.1 billion | BEA, current dollars, 2024 · official |
| Median household income | $66,139 | ACS 2020–2024 5-year · official |
| Poverty rate | 15.0% | ACS 2020–2024 5-year · official |
| Bachelor’s degree or higher | 31.3% | Age 25+, ACS 2020–2024 5-year · official |
| Foreign-born residents | 5.3% | ACS 2020–2024 5-year · official |
| Median home value | $180,900 | ACS 2020–2024 5-year · official |
| Median gross rent | $1,026/month | ACS 2020–2024 5-year · official |
| Median age | 38.8 years | ACS 2020–2024 5-year · official |
| Households | 231,319 | ACS 2020–2024 5-year · official |
| Owner-occupied homes | 62.5% | ACS 2020–2024 5-year · official |
Montgomery County in context
Comparable indicators for Montgomery County, Ohio and the United States.
| Indicator | County | Ohio | U.S. | Reference |
|---|---|---|---|---|
| Population change 2020–2024 | +0.0% | +0.7% | +2.6% | Census Vintage 2024 |
| Birth rate (per 1,000) | 10.9 | 10.7 | 10.6 | 2024 |
| Death rate (per 1,000) | 12.0 | 10.7 | 9.1 | 2024 |
| Net migration rate (per 1,000) | 5.0 | 5.0 | 8.2 | 2024 |
| Population density (/mi²) | 1164.9 | 290.8 | 96.3 | 2024 |
| Per capita personal income | $60,796 | $64,464 | $73,204 | BEA, 2024 |
| Median household income | $66,139 | $71,389 | $80,734 | ACS 2020–2024 5-year |
| Poverty rate | 15.0% | 13.3% | 12.5% | ACS 2020–2024 5-year |
| Bachelor’s degree or higher | 31.3% | 31.5% | 35.7% | Age 25+, ACS 2020–2024 5-year |
| Foreign-born residents | 5.3% | 5.2% | 14.1% | ACS 2020–2024 5-year |
| Median home value | $180,900 | $214,800 | $332,700 | ACS 2020–2024 5-year |
| Median gross rent | $1,026/month | $1,034/month | $1,413/month | ACS 2020–2024 5-year |
| Median age | 38.8 years | 39.7 years | 38.9 years | ACS 2020–2024 5-year |
| Owner-occupied homes | 62.5% | 67.2% | 65.2% | ACS 2020–2024 5-year |
Cities & towns
2 cities · choose how to order them
Did you know? Montgomery County
A quarter century of change
Its population went from 558,522 in 2000 to 537,443 in 2024, a change of −3.8%, compared with +4.6% for Ohio as a whole.
Births and deaths
In the year to July 2024 the county recorded 5,879 births and 6,450 deaths, so deaths outnumbered births by 571.
Peak population in 2000
Annual Census estimates since 2000 put the county's highest population at 558,522 in 2000. The 2024 figure is 21,079 lower.
6th in density
Montgomery County has about 1164.9 residents per square mile of land, ranking 6th of 88 counties; Ohio averages 290.8.
Household income rank
With a median household income of $66,139 (ACS 2020–2024 5-year), the county ranks 47th of 88 Ohio counties; the state median is $71,389.
Size of the economy
Its economy produced $40.1 billion of GDP in 2024 (BEA), 5th largest among 88 Ohio counties.
Latest economic growth
Real GDP grew 1.9% in 2024, adjusted for inflation (BEA, chained 2017 dollars).
Sources and methodology
- U.S. Census Bureau — County population totals and components, Vintage 2024
- U.S. Census Bureau — County estimates 2010–2020
- U.S. Census Bureau — Intercensal estimates 2000–2010
- U.S. Census Bureau — Gazetteer files (land area)
- U.S. Census Bureau — American Community Survey 2020–2024 5-year
- U.S. Bureau of Economic Analysis — Regional economic accounts
- U.S. Bureau of Labor Statistics — LAUS