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21788 ZIP Code

Thurmont, Maryland

December 15, 2025
ZIP Code:21788
City/Town:Thurmont
County:Frederick
State:Maryland
ZIP Type:Standard
Population:11,412
Median Household Income:$90,091
Per Capita Income:$51,839
Total Housing Units:4,955
Median Home Value:$328,600
Land Area:65.4 sq miles
169.5 sq km
Water Area:0.5 sq miles
1.3 sq km
Coordinates:39.5900, -77.4139

Population Information (21788 zip code)

#%US
Total Population:11,412----
Male:5,76150.5%49.6%
Female:5,65149.5%50.4%
Median Age:47.9 yrs--38.5 yrs
Under 5 years:3292.9%5.7%
5 to 9 years:4493.9%6.0%
10 to 14 years:7616.7%6.5%
15 to 19 years:6475.7%6.6%
20 to 24 years:7166.3%6.7%
25 to 34 years:1,38812.2%13.7%
35 to 44 years:1,0188.9%12.9%
45 to 54 years:1,74315.3%12.4%
55 to 59 years:1,18810.4%6.5%
60 to 64 years:9478.3%6.4%
65 to 74 years:1,35111.8%9.7%
75 to 84 years:4914.3%4.8%
85 years and over:3843.4%2.0%

Housing Information (21788 zip code)

#%US
Median home value:$328,600--$281,900
Median rooms:6.7--5.5
Median rent:$1,025 / mo.--$1,268 / mo.
Total housing units:4,955----
Occupied housing units:4,64893.8%38.0%
Vacant housing units:3076.2%4.6%
Housing tenure:------
Owner-occupied:3,75480.8%64.8%
Renter-occupied:89419.2%35.2%

Educational Attainment (21788 zip code)

#%US
Population 25 years and over:8,510----
Less than 9th grade:2492.9%4.7%
9th to 12th grade, no diploma:5326.3%6.1%
High school graduate:3,04435.8%26.4%
Some college, no degree:1,50317.7%19.7%
Associate degree:8259.7%8.7%
Bachelor's degree:1,33415.7%20.9%
Graduate or professional degree:1,02312.0%13.7%
Percent high school graduate or higher:--90.8%89.1%
Percent bachelor's degree or higher:--27.7%34.3%

Income Information (21788 zip code)

ValueUS
Median household income:$90,091 / yr.$75,149 / yr.
Mean household income:$119,078 / yr.$105,833 / yr.
Median family income:$107,250 / yr.$92,646 / yr.
Per capita income:$51,839 / yr.$41,261 / yr.

Employment (21788 zip code)

#%US
In labor force:6,691--63.5%
Employed:6,51597.6%96.4%
Unemployed:1572.4%5.3%
Not in labor force:2,914----
Class of Worker:------
Private wage and salary:4,55569.9%79.7%
Government workers:1,55223.8%14.2%
Self-employed:3956.1%5.9%
Unpaid family workers:130.2%0.1%

Race & Ethnicity (21788 zip code)

#%US
Race (one race):------
White:10,71093.8%61.6%
Black or African American:1000.9%12.4%
American Indian/Alaska Native:150.1%1.1%
Asian:510.4%6.0%
Native Hawaiian/Pacific Islander:00.0%0.2%
Some other race:1411.2%8.4%
Two or more races:3953.5%10.2%
Hispanic or Latino (any race):3172.8%18.7%
Mexican:4263.7%11.2%
Puerto Rican:1311.1%1.8%
Cuban:00.0%0.7%
Other Hispanic or Latino:1331.2%5.0%
Not Hispanic or Latino:1621.4%81.1%

Income Distribution (21788 zip code)

Household IncomeHouseholds%US
Less than $10,000:711.5%4.9%
$10,000 to $14,999:1683.6%3.8%
$15,000 to $24,999:3367.2%7.0%
$25,000 to $34,999:2094.5%7.4%
$35,000 to $49,999:3898.4%10.7%
$50,000 to $74,999:60713.1%16.1%
$75,000 to $99,999:83618.0%12.8%
$100,000 to $149,999:84118.1%17.1%
$150,000 to $199,999:4479.6%8.8%
$200,000 or more:74416.0%11.4%

Commute to Work (21788 zip code)

Commute MethodWorkers%US
Drove alone:5,01877.0%67.8%
Carpooled:5027.7%8.7%
Public transportation:160.2%4.2%
Walked:1271.9%2.5%
Other means:761.2%0.9%
Worked from home:71110.9%13.8%
Mean travel time to work:29.3 min--26.7 min

Industry (21788 zip code)

Industry SectorWorkers%US
Agriculture, forestry, fishing, mining:1271.9%1.6%
Construction:78312.0%6.9%
Manufacturing:3645.6%10.0%
Wholesale trade:781.2%2.4%
Retail trade:65910.1%11.0%
Transportation, warehousing, utilities:1352.1%5.8%
Information:1522.3%1.9%
Finance, insurance, real estate:3865.9%6.7%
Professional, scientific, management:84613.0%12.1%
Education, health care, social services:1,56924.1%23.3%
Arts, entertainment, food services:4126.3%9.0%
Other services:4336.6%4.7%
Public administration:5718.8%4.7%

Poverty Status (21788 zip code)

#%US
Poverty Rate:--8.2%8.8%
All people below poverty level:------
Under 18 years:----16.3%
18 to 64 years:----11.0%
65 years and over:----10.3%

Health Insurance (21788 zip code)

#%US
With health insurance:10,82094.8%91.3%
Private health insurance:9,00478.9%67.6%
Public health coverage:3,78833.2%35.9%
Without health insurance:5735.0%8.7%

Benefits & Assistance (21788 zip code)

Households with:#%US
Earnings:3,66478.8%77.4%
Social Security income:1,63335.1%31.0%
Retirement income:1,25627.0%21.8%
Supplemental Security Income (SSI):1533.3%4.5%
Cash public assistance income:912.0%1.8%
SNAP (food stamps) benefits:4279.2%11.4%

Housing Types (21788 zip code)

Structure TypeUnits%US
1-unit, detached:3,91579.0%61.4%
1-unit, attached:3877.8%6.1%
2 units:1312.6%3.4%
3 or 4 units:1202.4%4.3%
5 to 9 units:721.5%4.6%
10 to 19 units:1773.6%4.3%
20 or more units:1022.1%9.9%
Mobile home:511.0%5.8%
Boat, RV, van, etc.:00.0%0.1%

Year Structure Built (21788 zip code)

Year BuiltUnits%US
Built 2020 or later:00.0%0.6%
Built 2010 to 2019:2505.0%8.2%
Built 2000 to 2009:54511.0%13.5%
Built 1990 to 1999:88817.9%13.2%
Built 1980 to 1989:56211.3%13.2%
Built 1970 to 1979:59612.0%14.6%
Built 1960 to 1969:50310.2%10.2%
Built 1950 to 1959:51110.3%9.9%
Built 1940 to 1949:2354.7%4.6%
Built 1939 or earlier:86517.5%12.0%

Bedrooms (21788 zip code)

Number of BedroomsUnits%US
No bedroom (studio):511.0%2.4%
1 bedroom:3657.4%3.0%
2 bedrooms:78115.8%9.1%
3 bedrooms:2,26845.8%15.9%
4 bedrooms:1,25925.4%18.8%
5 or more bedrooms:2314.7%17.6%

Heating Fuel (21788 zip code)

Fuel TypeUnits%US
Utility gas:1854.0%47.1%
Bottled, tank, or LP gas:3186.8%4.9%
Electricity:2,54954.8%40.2%
Fuel oil, kerosene, etc.:1,12324.2%4.2%
Coal or coke:00.0%0.1%
Wood:2114.5%1.5%
Solar energy:90.2%0.1%
Other fuel:2114.5%0.5%
No fuel used:420.9%0.2%

Vehicles Available (21788 zip code)

VehiclesHouseholds%US
No vehicle available:932.0%8.3%
1 vehicle available:1,15624.9%32.6%
2 vehicles available:1,49532.2%37.0%
3 or more vehicles available:1,90441.0%22.1%

Home Value Distribution (21788 zip code)

Value RangeOwner Units%US
Less than $50,000:631.7%5.7%
$50,000 to $99,999:772.1%7.8%
$100,000 to $149,999:340.9%9.2%
$150,000 to $199,999:3649.7%10.8%
$200,000 to $299,999:1,05828.2%19.9%
$300,000 to $499,999:1,82948.7%24.1%
$500,000 to $999,999:2727.2%17.0%
$1,000,000 or more:571.5%5.6%

Housing Costs (21788 zip code)

ValueUS
Median owner costs (with mortgage):$1,750 / mo.$1,828 / mo.
Median owner costs (no mortgage):$649 / mo.$584 / mo.
Median gross rent:$1,025 / mo.$1,268 / mo.
Average household size (owner-occupied):2.502.53
Average household size (renter-occupied):2.262.38

Households (21788 zip code)

#%US
Total households:4,648----
Married-couple households:2,71858.5%47.5%
Cohabiting couple households:69414.9%7.0%
Male householder, no spouse:55511.9%5.4%
Female householder, no spouse:1,01321.8%12.7%
Householder living alone:1,22326.3%28.6%
65 years and over living alone:1,68736.3%11.8%
Average household size:2.45--2.53
Average family size:2.80----

Marital Status (21788 zip code)

Population 15 years and over#%US
Total:4,965----
Never married:1,49730.2%37.0%
Now married:2,87257.8%49.5%
Separated:901.8%1.5%
Widowed:4739.5%2.6%
Divorced:98019.7%9.3%

School Enrollment (21788 zip code)

Population 3 years and over#%US
Enrolled in school:2,369----
Nursery school, preschool:883.7%5.8%
Kindergarten:562.4%5.0%
Elementary school (grades 1-8):1,00242.3%40.5%
High school (grades 9-12):63726.9%21.4%
College or graduate school:58624.7%27.3%

Veterans & Disability (21788 zip code)

#%US
Civilian population 18 years and over:9,396----
Veterans:7427.9%6.3%
Civilian noninstitutionalized population:11,393----
With a disability:1,38912.2%13.4%
Under 18 with disability:584.2%5.8%
18 to 64 with disability:67948.9%10.4%
65 and over with disability:65246.9%33.4%

Mobility (Residence 1 Year Ago) (21788 zip code)

Population 1 year and over#%US
Same house:9,73185.3%86.9%
Different house:1,60914.1%13.1%
Same county:1,03964.6%7.0%
Different county:57035.4%3.2%
Different state:1267.8%2.5%
Abroad:00.0%0.4%

Place of Birth (21788 zip code)

#%US
Native born:11,22598.4%86.2%
Foreign born:1931.7%13.9%
Naturalized citizen:18796.9%52.7%
Not a citizen:18796.9%47.3%
Foreign-born by region:------
Europe:18796.9%10.5%
Asia:6533.7%31.3%
Africa:00.0%5.5%
Oceania:00.0%0.5%
Latin America:6734.7%50.0%
Northern America:168.3%2.2%

Language Spoken at Home (21788 zip code)

Population 5 years and over#%US
Total:11,083----
English only:10,68996.4%78.3%
Language other than English:3943.6%21.5%
By language:------
Spanish:2041.8%13.3%
Other Indo-European languages:1601.4%3.5%
Asian/Pacific Island languages:250.2%3.5%
Other languages:50.0%1.0%

Computers & Internet (21788 zip code)

Households%US
Households with a computer:4,648100.0%93.1%
Households with broadband internet:4,23591.1%89.4%