Residential delivery area · Maryland
ZIP Code 21722: Clear Spring, MD
ZIP code 21722 uses the postal name Clear Spring, Maryland and lies entirely in Washington County (Census 2020 ZIP-county file). About 6,700 people live there (Census Bureau, ACS 2020-2024). Median household income is $88,232 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Charlton (under 1%), Big Spring (under 1%) and Clear Spring (under 1%), and 2% in smaller places; 97% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Clear Spring · its only residential ZIP
- County
- Washington County
- Census places
- Charlton (under 1%) census-designated place; Big Spring (under 1%) census-designated place; Clear Spring (under 1%)
- Metro area
- Hagerstown-Martinsburg, MD-WV
- House district
- MD-6 119th Congress
- State
- Maryland
- Time zone
- Eastern
- Land area
- 56.9 sq mi · 118 people per sq mi
Where is ZIP code 21722?
21722 centers on 39.665°, -77.913° and covers 56.9 square miles of land plus 1.4 of water. It borders 7 ZIP codes: 21711, 25419, 21795, 21740, 17236, 17225, 25427.
The map draws ZIP code areas only. For the streets inside 21722, 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 21722 compare with the rest of Washington County?
| Measure | 21722 | In Washington County | In MD |
|---|---|---|---|
| People (ACS 2020-2024) | 6,721 | 6th of 20 | 211th of 477 |
| Median household income | $88k | 5th of 9 | 203rd of 293 |
| Median home value | $313k | 7th of 15 | 255th of 320 |
Its median household income is higher than in 71% 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 21722?
The 2020 Census counted 5,674 people in 21722; the ACS, which samples households over 2020-2024, estimates 6,721. Between the 2010 and 2020 censuses its population grew 2.3% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 6,721±1,290 (90% margin)
- 2020 Census count
- 5,674+2.3% since 2010 (5,545)
- Households
- 2,222
- Median age
- 40.7
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 21722?
Of the 6,721 people the ACS estimates in 21722, 27.1% are under 18 and 16.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (93.4%).
- Under 1827.1%
- 18 to 6456.3%
- 65 and older16.5%
- White, not Hispanic93.4%
- Other or two or more4.2%
- Black, not Hispanic1.3%
- Asian, not Hispanic0.8%
- Hispanic or Latino0.3%
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 21722 earn?
Median household income is $88,232 (ACS 2020-2024), the 5th highest of the 9 ranked ZIP codes in Washington County. It is not measurably different from 2015-2019 ($76,579 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $88,232±$15,728
- Income per person
- $37,319
- Below the poverty line
- 2.2%
- Unemployed (of the labor force)
- 1.2%
- Adults 25+ with a bachelor's degree
- 20.0%
- Adjusted gross income per tax return, 2022
- $74,9852,800 returns; wages 71% 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 21722?
FHFA's house price index for 21722, built from repeat sales and appraisals of the same homes, rose 74% from 2015 to 2025 and rose 49% from 2020 to 2025, and moved +2.5% in 2025.
- Median home value (owners' estimate)
- $312,500
- Median gross rent
- $932
- Homes owned by their occupants
- 82.9%
- Housing units
- 2,356
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 21722?
85 business establishments had a location in this ZIP code in 2023, 13 fewer than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction19
- Retail trade10
- Health care and social assistance9
- Other services (except public administration)9
- Administrative and support and waste management and remediation services8
- Transportation and warehousing7
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 21722?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 21711 | Big Pool | 929 | $91k | 5.7 mi |
| 25419 | Falling Waters, WV | 13,201 | $89k | 5.8 mi |
| 21795 | Williamsport | 10,144 | $88k | 7.5 mi |
| 21740 | Hagerstown | 64,792 | $63k | 9.3 mi |
| 17236 | Mercersburg, PA | 8,845 | $79k | 9.5 mi |
| 17225 | Greencastle, PA | 20,347 | $89k | 11.5 mi |
| 25427 | Hedgesville, WV | 16,595 | $87k | 14.0 mi |
| 21767 | Maugansville | 1,031 | $58k | 9.2 mi (near) |
| 21781 | Saint James | 25 | – | 10.4 mi (near) |
| 17263 | State Line, PA | 896 | $89k | 11.2 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.