Residential delivery area · Maryland
ZIP Code 21613: Cambridge, MD
ZIP code 21613 uses the postal name Cambridge, Maryland and lies entirely in Dorchester County (Census 2020 ZIP-county file). About 18,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $53,890 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Cambridge (7%) and Algonquin (under 1%); 93% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Cambridge · its only residential ZIP
- County
- Dorchester County
- Census places
- Cambridge (7%); Algonquin (under 1%) census-designated place
- Neighborhoods
- Garden Estates, Lodgecliff, Lovers Lane, Patamoke Village, Sandy Acres, Treeland GeoNames
- Micro area
- Cambridge, MD
- House district
- MD-1 119th Congress
- State
- Maryland
- Time zone
- Eastern
- Land area
- 153.7 sq mi · 117 people per sq mi
Where is ZIP code 21613?
21613 centers on 38.503°, -76.079° and covers 153.7 square miles of land plus 40.9 of water. It borders 7 ZIP codes: 21677, 21622, 21835, 21631, 21673, 21626, 21869.
The map draws ZIP code areas only. For the streets inside 21613, 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 21613 compare with the rest of Dorchester County?
| Measure | 21613 | In Dorchester County | In MD |
|---|---|---|---|
| People (ACS 2020-2024) | 17,926 | 2nd of 18 | 136th of 477 |
| Median household income | $54k | 5th of 5 | 285th of 293 |
| Median home value | $284k | 2nd of 5 | 270th of 320 |
Its median household income is higher than in 20% of U.S. residential ZIP codes, and it is denser than 56% 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 21613?
The 2020 Census counted 17,967 people in 21613; the ACS, which samples households over 2020-2024, estimates 17,926. Between the 2010 and 2020 censuses its population grew 3.7% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 17,926
- 2020 Census count
- 17,967+3.7% since 2010 (17,330)
- Households
- 7,790
- Median age
- 43.2
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 21613?
Of the 17,926 people the ACS estimates in 21613, 19.7% are under 18 and 23.8% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (52.4%), then Black (not Hispanic) (32.8%).
- Under 1819.7%
- 18 to 6456.5%
- 65 and older23.8%
- White, not Hispanic52.4%
- Black, not Hispanic32.8%
- Other or two or more7.0%
- Hispanic or Latino6.2%
- Asian, not Hispanic1.7%
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 21613 earn?
Median household income is $53,890 (ACS 2020-2024), the 5th highest of the 5 ranked ZIP codes in Dorchester County. It is not measurably different from 2015-2019 ($58,952 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $53,890
- Income per person
- $35,645
- Below the poverty line
- 22.0%
- Unemployed (of the labor force)
- 7.2%
- Adults 25+ with a bachelor's degree
- 21.7%
- Adjusted gross income per tax return, 2022
- $57,7408,880 returns; wages 65% 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 21613?
FHFA's house price index for 21613, built from repeat sales and appraisals of the same homes, rose 84% from 2015 to 2025 and rose 61% from 2020 to 2025, and moved +3.0% in 2025.
- Median home value (owners' estimate)
- $283,900
- Median gross rent
- $1,042
- Homes owned by their occupants
- 51.6%
- Housing units
- 9,413
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 21613?
484 business establishments had a location in this ZIP code in 2023, 20 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade69
- Health care and social assistance66
- Other services (except public administration)57
- Accommodation and food services49
- Professional, scientific, and technical services48
- Construction35
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 21613?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 21677 | Woolford | 436 | – | 5.6 mi |
| 21622 | Church Creek | 420 | $69k | 7.5 mi |
| 21835 | Linkwood | 312 | $47k | 8.0 mi |
| 21631 | East New Market | 2,429 | $74k | 9.3 mi |
| 21673 | Trappe | 2,843 | $68k | 9.8 mi |
| 21626 | Crapo | 256 | – | 11.1 mi |
| 21869 | Vienna | 827 | $62k | 11.9 mi |
| 21648 | Madison | 172 | – | 8.7 mi (near) |
| 21664 | Secretary | 635 | $83k | 10.2 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.