
Mount Aetna in pictures
Census counts: 3,608 in 1990, 580 in 2020. The archive holds 3 old photos and papers going back to 2020 and a map from 1912 on.
Explore the history →Each edition grades its towns against each other only.
637 people live in this town in Maryland.
Mount Aetna’s average commute is 18 minutes, against 32 minutes in Maryland’s towns and 25 minutes across U.S. towns. Mount Aetna has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
In a town this size, neighbors are the best guide. Ask them anything.

Census counts: 3,608 in 1990, 580 in 2020. The archive holds 3 old photos and papers going back to 2020 and a map from 1912 on.
Explore the history →Museums, parks, gardens and other places to visit around Mount Aetna. Close and well known come first.
Big draw14 mi LandmarkRaven Rock Mountain Complex
Big draw40 mi LandmarkMount Weather Emergency Operations Center
10 mi National BattlefieldAntietam National Battlefield161K visitors a year
25 mi Ancient siteGettysburg Battlefield
7 mi National park siteCatoctin Mountain Park461K visitors a year
25 mi LandmarkGettysburg National CemeteryRaven Rock Mountain Complex: US Government, Public domain · Mount Weather Emergency Operations Center: Unknown, Public domain · Antietam National Battlefield: Acroterion, CC BY-SA 4.0 · Gettysburg Battlefield: Veggies, Public domain · Catoctin Mountain Park: Acroterion, CC BY-SA 4.0 · Gettysburg National Cemetery: Photo: Henryhartley at en.wikipedia Statue: Randolph Rogers (1825-1892), Public domain
Mount Aetna is unincorporated, so Washington County and regional agencies provide most services.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Mar 11, 2026.
Ordered by what stands out in Mount Aetna.
Adults 35 to 64 are 59% of residents (40% statewide); adults 18 to 34 are 12% of residents (22% statewide). In Mount Aetna, 52% of adults 25 and older hold a bachelor’s degree or more. The midpoint age here is 48.5 years.
| Mount Aetna | Maryland towns | U.S. towns | |
|---|---|---|---|
| Median age | 48.5 years | 39.4 years | 40.5 years |
| Bachelor’s degree or more, 25+ | 52% | 42% | 29% |
49% women, 51% men
That’s an even split within the survey’s margin of ±7.2 points. Across Maryland, 51.3% of residents are women.
| Mount Aetna | MD | U.S. | |
|---|---|---|---|
| Under 10 | 8% | 11.9% | 11.6% |
| 10 to 17 | 13.5% | 10.3% | 10.3% |
| 18 to 24 | 6.1% | 8.5% | 9.1% |
| 25 to 34 | 6% | 13.2% | 13.7% |
| 35 to 44 | 7.8% | 13.6% | 13.2% |
| 45 to 54 | 18.5% | 12.6% | 12.2% |
| 55 to 64 | 32.2% | 13.3% | 12.7% |
| 65 to 74 | 7.8% | 9.9% | 10.2% |
| 75 and older | 0% | 6.8% | 7% |
| No diploma | 11.3% | 8.9% | 10.4% |
| High school | 15.8% | 23.4% | 26% |
| Some college | 15.6% | 17.4% | 19.1% |
| Associate’s | 5.2% | 6.8% | 8.8% |
| Bachelor’s | 15.8% | 22.7% | 21.6% |
| Graduate | 36.2% | 20.8% | 14.1% |
U.S. Census Bureau · ACS 2020-2024 5-year estimates · in a town of 600, single groups can be off by several points
| School | Level | Students | Letter |
|---|---|---|---|
| Mt. Aetna Adventist School (MAAS) PrivateLargest elementary schoolGrades K–8 | Grades K–8 | 130 | – |
| Highland View Academy PrivateLargest high schoolGrades 9–12 | Grades 9–12 | 97 | – |
NCES · EDFacts
Among residents in Mount Aetna, 3.8% live below the poverty line. Most working residents leave Mount Aetna for work: only 1% work in town. The top destinations are Hagerstown (9%), Frederick (8%) and Ballenger Creek (4%). Half of commuters travel less than 17 miles.
| Mount Aetna | Maryland towns | U.S. towns | |
|---|---|---|---|
| Below the poverty line | 3.8% | 7% | 9.6% |
| Working residents who work in town | 0.8% | 3.1% | 8% |
Census LEHD 2023 · ACS
Expected losses in Mount Aetna break down as 63% from inland flooding and 13% from hurricanes. Mount Aetna’s FEMA hazard score stands at 22 of 100.
FEMA National Risk Index · OpenFEMA
July afternoons reach 86°, January nights drop to 23° and about 28 inches of snow falls in a winter.
NOAA U.S. Climate Normals, 1991–2020
Over the 12 months to September 2026, the typical home gained 2.3% in value. Mount Aetna’s midpoint rent comes in at $1,153 a month. For households here, the share who own their home is 75%.
| Mount Aetna | Maryland towns | U.S. towns | |
|---|---|---|---|
| Median rent | $1,153 a month | $1,809 a month | $1,185 a month |
| Households that own their home | 75% | 74% | 73% |
Census ACS, 2020–24 · Zillow Home Value Index · Redfin Data Center
The share of adults in Mount Aetna who report frequent mental distress: 15%. This Maryland town beats the Maryland average on 6 of 32 CDC measures and trails it on 4. Among adults here, 23% have been diagnosed with depression and 80% had a checkup this year.
| Mount Aetna | Maryland towns | U.S. towns | |
|---|---|---|---|
| Binge drink (CDC PLACES) | 13% | 14% | 16% |
| Depression (CDC PLACES) | 23% | 20% | 23% |
| Yearly checkup (CDC PLACES) | 80% | 79% | 79% |
| Get no exercise (CDC PLACES) | 26% | 23% | 25% |
| What stands out | Mount Aetna | MD |
|---|---|---|
| Fewer adults facing a utility shut-off | 5.9% | 8.4% |
| Fewer adults facing housing insecurity | 9.7% | 13.5% |
| More adults who have had cancer | 9.8% | 7.6% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
3 within 15 miles of the center of Mount Aetna
About 4 of every 100 Mount Aetna residents are enrolled in college, against 7 across Maryland.
Where Mount Aetna’s working residents go each day. Line width shows the share.
Census LEHD 2023
CDP in Maryland, United States
Mount Aetna is a census-designated place (CDP) in Washington County, Maryland, United States. The population was 838 at the 2000 census.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
Short answers, built from the data on this page.
Mount Aetna has fewer than 1,000 residents, too few for fair grades; the figures below are still real. 637 people live in this town in Maryland.