Census-designated place · Pennsylvania
Bryn Mawr, Pennsylvania
Bryn Mawr, census-designated place, mostly in Montgomery County (69.8% of its 2020 residents), with a part in Delaware County, Pennsylvania. Bryn Mawr had 5,880 people in the ACS 2020-2024 5-year estimates (±649). GEOID 4209728.
Residents, 2020-2024
5,880
±649 (90% margin)
2020 Census count: 5,879
Median household income
$92,961
±$19,920 (90% margin)
Pennsylvania: $77,971
Median home value
$453,400
±$53,794 (90% margin)
Pennsylvania: $254,500
Median gross rent
$2,173
±$140 (90% margin)
Pennsylvania: $1,209
Where is Bryn Mawr and what county is it in?
Bryn Mawr is a census-designated place: an unincorporated community the Census Bureau draws for counting, with no city government of its own, mostly in Montgomery County (69.8% of its 2020 residents), with a part in Delaware County, Pennsylvania. It covers 1.0 square miles of land, 6,143 residents per square mile in 2020.
Bryn Mawr is in the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metropolitan statistical area, which takes in 11 counties (Census Bureau delineation, July 2023).
Bryn Mawr lies mostly within Lower Merion Township and reaches into Haverford Township and Radnor Township, towns or townships with their own local government (2020 census blocks).
| County | 2020 residents | Share |
|---|---|---|
| Montgomery County | 4,105 | 69.8% |
| Delaware County | 1,774 | 30.2% |
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Bryn Mawr, and is it growing?
The 2020-2024 American Community Survey puts Bryn Mawr's population at 5,880 (±649). The 2020 Census counted 5,879 residents.
The Census Bureau publishes yearly population estimates for incorporated places only; Bryn Mawr is a census-designated place, so its figures come from the ACS and the 2020 Census.
| Measure | Bryn Mawr | Montgomery County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 5,880 ±649 | 867,573 | +2,172 |
| Households | 1,865 ±229 | 335,505 | +611 |
| Average household size | 2.14 ±0.20 | 2.52 | no clear change |
| Housing units | 2,122 ±288 | 350,351 | +744 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Bryn Mawr?
The median resident of Bryn Mawr is 23.1 years old; 10.2% are under 18 and 13.9% are 65 or older. The largest group is non-Hispanic white residents at 72.4%, then non-Hispanic Black residents at 8.5%. 9.1% of residents were born outside the United States.
| Measure | Bryn Mawr | Montgomery County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 23.1 ±2.5 | 41.2 | no clear change |
| Under 18 years | 10.2% ±2.9 pts | 21.3% | – |
| 65 years and over | 13.9% ±2.4 pts | 18.8% | – |
| Male | 33.3% ±4.8 pts | 49.0% | – |
| Hispanic or Latino (any race) | 8.0% ±3.6 pts | 6.7% | +4.0 pts |
| White alone, not Hispanic | 72.4% ±4.7 pts | 71.5% | no clear change |
| Black or African American alone, not Hispanic | 8.5% ±3.1 pts | 9.2% | no clear change |
| Asian alone, not Hispanic | 6.0% ±1.9 pts | 8.0% | −6.8 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.6 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.3% ±0.5 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.7% ±1.9 pts | 4.0% | – |
| Some other race alone, not Hispanic | 0.0% ±0.6 pts | 0.6% | – |
| Born outside the United States | 9.1% ±2.4 pts | 11.5% | −6.6 pts |
| Speak a language other than English at home (age 5+) | 15.6% ±3.6 pts | 14.7% | – |
| Civilian veterans (age 18+) | 2.9% ±1.1 pts | 4.7% | – |
| With a disability | 10.4% ±2.6 pts | 10.7% | – |
| No health insurance coverage | 2.0% ±1.2 pts | 3.9% | no clear change |
| High school graduate or higher (age 25+) | 97.8% ±1.4 pts | 95.1% | – |
| Bachelor's degree or higher (age 25+) | 61.8% ±6.1 pts | 53.0% | no clear change |
| Graduate or professional degree (age 25+) | 30.9% ±5.9 pts | 23.5% | – |
| Lived in the same house a year earlier | 73.1% ±5.8 pts | 90.2% | – |
| Moved from another state in the past year | 11.8% ±4.0 pts | 1.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Bryn Mawr earn?
Half of Bryn Mawr's 1,865 households earn less than $92,961 a year (±$19,920), against $113,915 in Montgomery County and $77,971 in Pennsylvania. In 2015-2019 it was $89,225 in 2024 dollars; the margins of error cannot tell the two periods apart. 22.8% of residents live below the poverty line.
| Measure | Bryn Mawr | Montgomery County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $92,961 ±$19,920 | $113,915 | no clear change |
| Mean household income | $157,416 ±$34,116 | $158,091 | – |
| Per capita income | $52,338 ±$11,486 | $62,159 | no clear change |
| People below the poverty line | 22.8% ±6.8 pts | 6.5% | +10.7 pts |
| Children under 18 below the poverty line | 3.0% ±4.4 pts | 7.8% | – |
| Households receiving SNAP | 2.7% ±1.8 pts | 6.6% | – |
| Households with a computer | 99.5% ±0.7 pts | 96.7% | – |
| Households with a broadband subscription | 96.4% ±2.1 pts | 94.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Bryn Mawr?
Owners occupy 46.1% of Bryn Mawr's occupied homes and renters 53.9%. The median owner-occupied home is valued at $453,400 by its owner (±$53,794). The median renter pays $2,173 a month including utilities, and 49.8% of renters pay 35% or more of their income on rent.
| Measure | Bryn Mawr | Montgomery County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $453,400 ±$53,794 | $436,700 | +$88,622 |
| Median gross rent | $2,173 ±$140 | $1,683 | +$315 |
| Renters paying 35% or more of income on rent | 49.8% ±10.3 pts | 40.3% | no clear change |
| Median monthly owner costs, with a mortgage | $2,381 ±$225 | $2,441 | – |
| Owner-occupied homes | 46.1% ±5.8 pts | 71.4% | no clear change |
| Renter-occupied homes | 53.9% ±5.8 pts | 28.6% | – |
| Housing units | 2,122 ±288 | 350,351 | +744 |
| Homeowner vacancy rate | 0.0% ±3.5 pts | 0.8% | – |
| Rental vacancy rate | 3.9% ±3.9 pts | 5.5% | – |
| Single-family detached homes | 18.8% ±5.4 pts | 53.0% | – |
| Mobile homes | 0.0% ±1.5 pts | 0.8% | – |
| Built 2020 or later | 2.0% ±2.1 pts | 1.5% | – |
| Built 2010 to 2019 | 4.3% ±2.1 pts | 6.6% | – |
| Built 1939 or earlier | 38.2% ±8.4 pts | 16.0% | – |
| Households with no vehicle | 7.8% ±3.9 pts | 5.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Bryn Mawr work and get to work?
43.2% of Bryn Mawr's workers drive alone and 22.7% work from home. The average trip to work takes 25.2 minutes. The unemployment rate in 2020-2024 averaged 7.3%.
| Measure | Bryn Mawr | Montgomery County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 56.9% ±6.2 pts | 67.8% | – |
| Unemployment rate | 7.3% ±3.3 pts | 4.5% | no clear change |
| Drove alone to work | 43.2% ±4.6 pts | 64.4% | – |
| Carpooled | 2.8% ±1.9 pts | 6.2% | – |
| Public transportation | 7.3% ±2.8 pts | 2.9% | – |
| Walked | 20.9% ±4.4 pts | 2.0% | – |
| Worked from home | 22.7% ±6.5 pts | 23.3% | +14.4 pts |
| Mean travel time to work | 25.2 min ±4.7 | 27.8 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Bryn Mawr?
2 census tracts lie mostly in Bryn Mawr, and 4 more reach into it (2020 census blocks). Their median household incomes run from $96,375 (Tract 2050) to $129,000 (Tract 2051).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 2051Montgomery County | 2,111 | $129,000 |
| Tract 4083Delaware County | 5,026 | $158,021 |
| Tract 2050Montgomery County | 2,805 | $96,375 |
| Tract 4096.02Delaware County | 5,227 | $77,546 |
| Tract 2052Montgomery County | 2,703 | $201,165 |
| Tract 2049Montgomery County | 5,649 | $250,000 or more |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Bryn Mawr) · Census block assignment files
How does Bryn Mawr compare with other places in Pennsylvania?
Bryn Mawr ranks 574th of 2,136 places in Pennsylvania with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population (ACS 2020-2024) | 550th | 2,159 |
| Residents per square mile | 82nd | 2,159 |
| Median household income | 574th | 2,136 |
| Per capita income | 360th | 2,157 |
| Median home value | 150th | 2,146 |
| Median gross rent | 58th | 1,963 |
| Poverty rate | 116th | 1,606 |
| Bachelor's degree or higher | 120th | 2,129 |
| Median age | 2,127th | 2,157 |
| Owner-occupied share | 2,062nd | 2,149 |
| Work from home | 213th | 1,710 |
| Travel time to work | 1,162nd | 2,156 |
Bryn Mawr's figures with every place in Pennsylvania (CSV)
Every place in Pennsylvania, sortable · Compare Bryn Mawr with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Bryn Mawr?
10 of the 57 figures for Bryn Mawr on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Bryn Mawr are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.