ZIP 21788 · Thurmont, Maryland
2026 Edition · 8 cards · data as of Oct 30, 2026
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Population
11,654 people call ZIP 21788 home.
11,654
people.
Census ACS 5-year, 2020-2024. Sources: Census ACS 5-year
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Rent
Median rent is up 7% since the 2010–2014 survey, before inflation.
$959
a month. Maryland's median is $1,705.
Census ACS 5-year, 2020-2024 (latest), with earlier 5-year windows. Sources: Census ACS 5-year
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Room to build
Local wages can carry more rent than the median charged today.
$1,142–$1,712
is the monthly rent range local workforce wages support.
- $959 median
Supportable rent computed by the Almanac from 2023 source wage data. Median rent: Census ACS 5-year, 2020-2024. Sources: Computed by the Almanac, Census ACS 5-year
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Building
Most of the housing here is older than 2000.
- 83% of all homes were built before 2000
Census ACS 5-year, 2020-2024. Sources: Census ACS 5-year
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Units needed
Closing the gap would add 0.2–0.8% to the 4,871 homes here.
9–38
is the estimated number of missing housing units, from the lowest to the highest of three estimates.
Range computed by the Almanac from 2023 jobs and household data, using three demand models: 1% of jobs located here, 1% of renter households, and a rate by town size applied to renters. The low end is the lowest of the three and the high end the highest. It is an estimate, not a count. Sources: Computed by the Almanac
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Home value
A median home costs 10% less than Maryland's.
$379,200
median home value in ZIP 21788.
- $379,200 ZIP 21788
- $419,900 Maryland
- $332,700 U.S.
Census ACS 5-year, 2020-2024. Sources: Census ACS 5-year