Residential delivery area · Maryland
ZIP Code 21702: Frederick, MD
ZIP code 21702 uses the postal name Frederick, Maryland and lies entirely in Frederick County (Census 2020 ZIP-county file). About 50,000 people live there (Census Bureau, ACS 2020-2024), the most populous of Frederick's 5 residential ZIP codes. Median household income is $106,983 (Census Bureau, ACS 2020-2024). By Census place, 24% of its land lies in Frederick, and 4% in smaller places; 73% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Frederick · 5 residential ZIPs
- County
- Frederick County
- Census places
- Frederick
- Neighborhoods
- Antietam Village, Applegate, College Estates, Hawthorn Square, Old Farm, Rock Creek Estates and 9 more GeoNames
- Metro area
- Washington-Arlington-Alexandria, DC-VA-MD-WV
- House district
- MD-6 119th Congress
- State
- Maryland
- Time zone
- Eastern
- Land area
- 41.7 sq mi · 1,189 people per sq mi
- PO Box ZIPs
- 21709 also use the name Frederick
Where is ZIP code 21702?
21702 centers on 39.479°, -77.443° and covers 41.7 square miles of land plus 0.1 of water. It borders 6 ZIP codes: 21714, 21701, 21769, 21773, 21788, 21703.
The map draws ZIP code areas only. For the streets inside 21702, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 21702 compare with the rest of Frederick?
| Measure | 21702 | In Frederick | In Frederick County | In MD |
|---|---|---|---|---|
| People (ACS 2020-2024) | 49,605 | 1st of 5 | 1st of 35 | 20th of 477 |
| Median household income | $107k | 2nd of 4 | 17th of 26 | 155th of 293 |
| Median home value | $426k | 3rd of 4 | 19th of 28 | 161st of 320 |
Its median household income is higher than in 85% of U.S. residential ZIP codes, and it is denser than 80% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 21702?
The 2020 Census counted 46,412 people in 21702; the ACS, which samples households over 2020-2024, estimates 49,605. Between the 2010 and 2020 censuses its population grew 19.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 49,605
- 2020 Census count
- 46,412+19.5% since 2010 (38,847)
- Households
- 18,525
- Median age
- 38.1
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 21702?
Of the 49,605 people the ACS estimates in 21702, 22.8% are under 18 and 15.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (51.0%), then Hispanic or Latino (21.8%).
- Under 1822.8%
- 18 to 6462.2%
- 65 and older15.0%
- White, not Hispanic51.0%
- Hispanic or Latino21.8%
- Black, not Hispanic16.2%
- Asian, not Hispanic5.9%
- Other or two or more5.1%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 21702 earn?
Median household income is $106,983 (ACS 2020-2024), the 17th highest of the 26 ranked ZIP codes in Frederick County. It is not measurably different from 2015-2019 ($104,302 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $106,983
- Income per person
- $50,065
- Below the poverty line
- 8.9%
- Unemployed (of the labor force)
- 3.3%
- Adults 25+ with a bachelor's degree
- 41.4%
- Adjusted gross income per tax return, 2022
- $84,07624,370 returns; wages 73% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 21702?
FHFA's house price index for 21702, built from repeat sales and appraisals of the same homes, rose 72% from 2015 to 2025 and rose 46% from 2020 to 2025, and moved +0.5% in 2025.
- Median home value (owners' estimate)
- $426,300
- Median gross rent
- $1,770
- Homes owned by their occupants
- 65.2%
- Housing units
- 19,462
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 21702?
880 business establishments had a location in this ZIP code in 2023, 45 fewer than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance234
- Professional, scientific, and technical services115
- Retail trade100
- Other services (except public administration)92
- Construction83
- Accommodation and food services69
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 21702?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 21714 | Braddock Heights | 95 | $162k | 5.9 mi |
| 21701 | Frederick | 43,048 | $107k | 6.4 mi |
| 21769 | Middletown | 11,965 | $152k | 7.2 mi |
| 21773 | Myersville | 5,826 | $162k | 7.2 mi |
| 21788 | Thurmont | 11,654 | $99k | 7.8 mi |
| 21703 | Frederick | 41,960 | $106k | 7.9 mi |
| 21705 | Frederick | 6 | – | 5.2 mi (near) |
| 21793 | Walkersville | 10,719 | $122k | 5.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.