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Washington County · Mount Aetna, MDMount Aetna, MD property taxes. A steady market. Check the details.
The typical home in Mount Aetna was worth about $496,000 in January 2026, up 4.4% from a year earlier. In a steady market, an appeal works best for specific homes whose assessment ran ahead of what they'd sell for.
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What Mount Aetna home values did
Mount Aetna values rose 4.4% in the year to January 2026, reaching a new high. That's stronger than Washington County as a whole (+1.7%).
Values have been roughly flat since January, through August 2026.
| Month | Typical value | vs. a year earlier |
|---|---|---|
| January 2021 | $375,000 | +11.3% |
| January 2022 | $422,000 | +12.7% |
| January 2023 | $442,000 | +4.5% |
| January 2024 | $454,000 | +2.8% |
| January 2025 | $475,000 | +4.6% |
| January 2026 | $496,000 | +4.4% |
| August 2026 (latest) | $498,000 | +0.4% since January |
January 2026 was the highest month since 2021.
What to check on your notice
The typical Mount Aetna home gained 4.4% in the year to January 2026. A notice that rose far more than that, or a value above what similar homes nearby actually sold for, is the usual starting point for an appeal.
How Mount Aetna compares nearby
Among 10 Washington County places, Mount Aetna has the 10th largest drop from its peak and the 1st highest typical value. Statewide, its 1-year change ranks 327th of 343 Maryland places, from weakest to strongest.
| Place | January 2026 | 1-year change | vs. peak |
|---|---|---|---|
| Hagerstown | $301,000 | +0.4% | At peak |
| Boonsboro | $408,000 | +3.2% | At peak |
| Smithsburg | $365,000 | +2.9% | At peak |
| Williamsport | $345,000 | +2.7% | At peak |
| Halfway | $289,000 | +0.8% | At peak |
| Clear Spring | $366,000 | +5.1% | At peak |
| Robinwood | $377,000 | +1.9% | At peak |
| Hancock | $255,000 | +2.6% | At peak |
| Keedysville | $458,000 | +2.8% | -0.1% |
| Mount Aetna | $496,000 | +4.4% | At peak |
Deadline and where to file
Mount Aetna values are set by the local State Department of Assessments and Taxation (SDAT) office. Appeal within 45 days of the date on your Notice of Assessment. The 45 day count starts the day after the notice date, and appeals postmarked by day 45 count. In the two years between regular reassessments you can file a petition for review instead, due by the first working day after January 1. If you buy a home, you can also appeal within 60 days of the transfer.
Reading this in fall 2026? Maryland reassesses one third of properties each year. Group 2 was reassessed for 2026 and notices went out December 30, 2025, so that window has closed. Group 3 is reassessed effective January 1, 2027, with notices expected around the end of 2026, and then you have 45 days from your notice date. Group 1 follows in 2028. Check your account on the SDAT property search to see your group and notice date.
The Washington County guide covers the full Maryland appeal process: forms, fees, hearing levels and what happens next.
Building a Mount Aetna case
A citywide index shows the trend. Your case needs your house. Mount Aetna is part of the Hagerstown-Martinsburg metro, but your evidence should be local. Sales a few streets away usually beat sales across the metro.
- Bring recent sales of similar homes and any photos or repair estimates showing condition problems.
Get your Mount Aetna appeal report
Start with your address. Vulorean checks your assessment against recent comparable sales and builds a value report you can bring to your Maryland appeal. Eligible reports are free during launch; an account is required and local filing fees are separate.
Check my property and get a report →Vulorean was built for California first. Maryland forms, deadlines and filing rules vary, so confirm them with your local office before filing. If something in your report looks wrong, email support@vulorean.com and we'll get it fixed.
Home values: Zillow Home Value Index (ZHVI), all homes, mid-tier, smoothed and seasonally adjusted, through August 2026, from Zillow Research. Rules: SDAT Assessment Appeal Process, SDAT Property Owner's Bill of Rights, SDAT Homestead Tax Credit Program, SDAT 2026 reassessment press release, Dec 30, 2025. Vulorean is an independent service, not a government office. Confirm dates and forms with your local office.