Residential delivery area · Maryland
ZIP Code 21085: Joppa, MD
ZIP code 21085 uses the postal name Joppa, Maryland and lies mostly in Harford County (94% of its land) with the rest in Baltimore County (Census 2020 ZIP-county file). About 17,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $113,714 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Joppatowne (36%) and Edgewood (6%), and 4% in smaller places; 54% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Joppa · its only residential ZIP
- County
- Harford County (94%); Baltimore County (6%)
- Census places
- Joppatowne (36%) census-designated place; Edgewood (6%) census-designated place
- Metro area
- Baltimore-Columbia-Towson, MD
- House district
- MD-1 119th Congress
- State
- Maryland
- Time zone
- Eastern
- Land area
- 19.0 sq mi · 912 people per sq mi
Where is ZIP code 21085?
21085 centers on 39.446°, -76.357° and covers 19.0 square miles of land plus 0.9 of water. It borders 8 ZIP codes: 21087, 21040, 21009, 21162, 21010, 21014, 21047, 21015.
The map draws ZIP code areas only. For the streets inside 21085, 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).
How does 21085 compare with the rest of Harford County?
| Measure | 21085 | In Harford County | In MD |
|---|---|---|---|
| People (ACS 2020-2024) | 17,307 | 8th of 24 | 139th of 477 |
| Median household income | $114k | 11th of 18 | 138th of 293 |
| Median home value | $349k | 17th of 20 | 228th of 320 |
Its median household income is higher than in 88% of U.S. residential ZIP codes, and it is denser than 78% 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 21085?
The 2020 Census counted 17,142 people in 21085; the ACS, which samples households over 2020-2024, estimates 17,307. Between the 2010 and 2020 censuses its population grew 6.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 17,307
- 2020 Census count
- 17,142+6.0% since 2010 (16,171)
- Households
- 6,801
- Median age
- 42.3
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 21085?
Of the 17,307 people the ACS estimates in 21085, 19.1% are under 18 and 20.7% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (72.6%), then Black (not Hispanic) (17.5%).
- Under 1819.1%
- 18 to 6460.2%
- 65 and older20.7%
- White, not Hispanic72.6%
- Black, not Hispanic17.5%
- Hispanic or Latino4.3%
- Other or two or more3.8%
- Asian, not Hispanic1.8%
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 21085 earn?
Median household income is $113,714 (ACS 2020-2024), the 11th highest of the 18 ranked ZIP codes in Harford County. It is not measurably different from 2015-2019 ($109,358 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $113,714
- Income per person
- $53,622
- Below the poverty line
- 6.9%
- Unemployed (of the labor force)
- 3.5%
- Adults 25+ with a bachelor's degree
- 31.2%
- Adjusted gross income per tax return, 2022
- $78,3259,010 returns; wages 76% 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 21085?
FHFA's house price index for 21085, built from repeat sales and appraisals of the same homes, rose 69% from 2015 to 2025 and rose 47% from 2020 to 2025, and moved +3.5% in 2025.
- Median home value (owners' estimate)
- $348,600
- Median gross rent
- $1,734
- Homes owned by their occupants
- 84.0%
- Housing units
- 7,169
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 21085?
294 business establishments had a location in this ZIP code in 2023, 25 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction60
- Other services (except public administration)47
- Retail trade43
- Health care and social assistance29
- Administrative and support and waste management and remediation services18
- Transportation and warehousing16
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 21085?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 21087 | Kingsville | 5,537 | $129k | 3.0 mi |
| 21040 | Edgewood | 24,960 | $82k | 4.1 mi |
| 21009 | Abingdon | 33,679 | $122k | 4.2 mi |
| 21162 | White Marsh | 4,639 | $158k | 4.6 mi |
| 21010 | Gunpowder | 239 | $99k | 5.1 mi |
| 21014 | Bel Air | 38,707 | $117k | 6.2 mi |
| 21047 | Fallston | 13,852 | $158k | 7.1 mi |
| 21015 | Bel Air | 30,013 | $137k | 7.6 mi |
| 21156 | Upper Falls | 204 | – | 2.8 mi (near) |
| 21051 | Fork | 172 | $233k | 5.6 mi (near) |
| 21128 | Perry Hall | 15,501 | $128k | 5.6 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.