ZIP 21661 · Rock Hall, Maryland
2026 Edition · 8 cards · data as of Oct 30, 2026
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Population
2,613 people call ZIP 21661 home.
2,613
people.
Census ACS 5-year, 2020-2024. Survey estimates for a place this size carry wide margins of error. Sources: Census ACS 5-year
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Rent
Median rent is up 47% since the 2010–2014 survey, before inflation.
$1,000
a month. Maryland's median is $1,705.
Census ACS 5-year, 2020-2024 (latest), with earlier 5-year windows. Survey estimates for a place this size carry wide margins of error. Sources: Census ACS 5-year
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Room to build
The median rent sits inside what local wages can carry.
$914–$1,370
is the monthly rent range local workforce wages support.
- $1,000 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.
- 77% of all homes were built before 2000
Census ACS 5-year, 2020-2024. Survey estimates for a place this size carry wide margins of error. Sources: Census ACS 5-year
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Units needed
Closing the gap would add 0.1–0.3% to the 1,784 homes here.
2–6
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 33% less than Maryland's.
$283,200
median home value in ZIP 21661.
- $283,200 ZIP 21661
- $419,900 Maryland
- $332,700 U.S.
Census ACS 5-year, 2020-2024. Survey estimates for a place this size carry wide margins of error. Sources: Census ACS 5-year