ZIP Code 21770
ZIP Code Tabulation Area in Frederick County, Maryland.
- Population
- 7,815
- Median household income
- $184,464
- Median home value
- $599,700
+41.8%’19–’23
+32.9%’19–’23
+43.1%’19–’23
ZIP Code 21770 (Frederick County, Maryland) is home to about 7,815 residents. Its median household income of $184,464 runs above the Frederick County figure of $120,458.
From 2019 to 2023, ZIP Code 21770's population grew 41.8% from 5,513 to 7,815.
97.1% of homes are single-family detached houses. The typical home was built around 1988.
Demographics
ACS 2019–2023- Population
- 7,815
- Median age
- 41.2 yrs
- Median household income
- $184,464
- Median home value
- $599,700
- Median gross rent
- —
- Housing units
- 2,448
- Homeownership rate
- 98.0%
- Bachelor's degree or higher
- 54.5%
- Unemployment rate
- 2.2%
Trends
ACS 5-year · 2019–20235,5137,815
$138,750$184,464
$419,100$599,700
$1,521$2,065
| Year | Population | Median household income | Median home value | Median gross rent |
|---|---|---|---|---|
| 2019 | 5,513 | $138,750 | $419,100 | — |
| 2020 | 6,145 | $146,520 | $445,600 | $1,521 |
| 2021 | 7,291 | $159,091 | $498,100 | $2,065 |
| 2022 | 7,786 | $175,809 | $570,000 | — |
| 2023 | 7,815 | $184,464 | $599,700 | — |
Each year is a US Census Bureau ACS 5-year estimate ending that year.
Age distribution
Under 54.3%
5 to 1717.6%
18 to 246.3%
25 to 3411.1%
35 to 4417.5%
45 to 5411.1%
55 to 6413.2%
65 to 7414.2%
75 and over4.7%
| Count | Share | |
|---|---|---|
| Under 5 | 335 | 4.3% |
| 5 to 17 | 1,372 | 17.6% |
| 18 to 24 | 490 | 6.3% |
| 25 to 34 | 871 | 11.1% |
| 35 to 44 | 1,370 | 17.5% |
| 45 to 54 | 868 | 11.1% |
| 55 to 64 | 1,030 | 13.2% |
| 65 to 74 | 1,110 | 14.2% |
| 75 and over | 369 | 4.7% |
Race & ethnicity
| Count | Share | |
|---|---|---|
| White (non-Hispanic) | 5,941 | 76.0% |
| Black or African American | 387 | 5.0% |
| American Indian & Alaska Native | 0 | 0.0% |
| Asian | 936 | 12.0% |
| Native Hawaiian & Pacific Islander | 0 | 0.0% |
| Some other race | 0 | 0.0% |
| Two or more races | 243 | 3.1% |
| Hispanic or Latino (any race) | 308 | 3.9% |
Educational attainment (age 25+)
No high school diploma1.5%
High school graduate17.6%
Some college or associate's26.4%
Bachelor's degree30.4%
Graduate or professional degree24.1%
| Count | Share | |
|---|---|---|
| No high school diploma | 85 | 1.5% |
| High school graduate | 986 | 17.6% |
| Some college or associate's | 1,483 | 26.4% |
| Bachelor's degree | 1,709 | 30.4% |
| Graduate or professional degree | 1,355 | 24.1% |
Commute to work
- Mean travel time to work
- 37 min
Drove alone64.6%
Carpooled9.6%
Public transit0.0%
Walked0.0%
Bicycle0.0%
Worked from home25.7%
Other means0.0%
How workers get to work
| Count | Share | |
|---|---|---|
| Drove alone | 2,640 | 64.6% |
| Carpooled | 394 | 9.6% |
| Public transit | 0 | 0.0% |
| Walked | 0 | 0.0% |
| Bicycle | 0 | 0.0% |
| Worked from home | 1,050 | 25.7% |
| Other means | 1 | 0.0% |
Travel time
| Count | Share | |
|---|---|---|
| Under 15 min | 251 | 8.3% |
| 15 to 29 min | 936 | 30.8% |
| 30 to 44 min | 666 | 21.9% |
| 45 to 59 min | 446 | 14.7% |
| 60+ min | 736 | 24.3% |
Households
- Average household size
- 3.26
- Poverty rate
- 1.4% (106 of 7,815)
| Count | Share | |
|---|---|---|
| Family households | 2,097 | 87.6% |
| Nonfamily households | 297 | 12.4% |
Housing
- Median year structure built
- 1988
Occupancy
| Count | Share | |
|---|---|---|
| Occupied | 2,394 | 97.8% |
| Vacant | 54 | 2.2% |
Tenure (of occupied units)
| Count | Share | |
|---|---|---|
| Owner-occupied | 2,345 | 98.0% |
| Renter-occupied | 49 | 2.0% |
1-unit, detached97.1%
1-unit, attached2.9%
2 to 4 units0.0%
5 to 19 units0.0%
20 or more units0.0%
Mobile home & other0.0%
Units in structure
| Count | Share | |
|---|---|---|
| 1-unit, detached | 2,376 | 97.1% |
| 1-unit, attached | 72 | 2.9% |
| 2 to 4 units | 0 | 0.0% |
| 5 to 19 units | 0 | 0.0% |
| 20 or more units | 0 | 0.0% |
| Mobile home & other | 0 | 0.0% |
Geography
- ZCTA
- 21770
- Land area
- 11 sq mi
- Water area
- 0.01 sq mi
- Center point
- 39.3502, -77.2562
Counties this ZIP covers
1Compare with nearby ZIP codes
6National ZIP rankings
21- Largest by population
- Most densely populated
- Highest median household income
- Highest median home value
- Most affordable home values
- Highest median gross rent
- Cheapest median gross rent
- Oldest by median age
- Youngest by median age
- Most college-educated
- Highest poverty rate
- Lowest poverty rate
- Highest homeownership rate
- Lowest homeownership rate
- Longest commutes
- Shortest commutes
- Largest households
- Newest housing
- Oldest housing
- Fastest-growing (2019–2023)
- Fastest-shrinking (2019–2023)