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We combine ZIP geometry, Zillow home values, USPS offices, and SEC company mappings into one readable local profile.
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Demographics, home values, and business data for ZIP code 21742
Source: Zillow ZHVI, USPS, SEC EDGAR, and the Sprytne ZIP graph. Updated 2026-03-31.
Why this ZIP page is useful for Google, LLMs, and mobile users.
Source chain
We combine ZIP geometry, Zillow home values, USPS offices, and SEC company mappings into one readable local profile.
Freshness
Where home values exist, the page carries a last-updated signal and a one-year change view for quick trust checks.
Retrieval quality
The page exposes location, value, company, and postal context in short blocks, which helps LLM chunking and mobile scanning.
Compact provenance blocks help trust, citations, and chunkability.
Geo core
ZIP geometry, latitude/longitude, timezone, county, and nearby ZIP context anchor the page in a concrete place.
Market signal
Zillow home values add a living price signal, while SEC company links show local business density.
Utility layer
USPS offices and nearby ZIPs help users and models move from one code into a useful local cluster.
City
Hagerstown
State
Maryland
County
Washington
Population
33,069
Latest refresh
2026-03-31
Real Estate · Zillow ZHVI
Typical Home Value
$346,224
Prior Year
$341,288
1-Year Change
+1.4%
Metro: Hagerstown-Martinsburg, MD-WV · Updated 2026-03-31
ZIP Intelligence · Sprytne.com
ZIP code 21742 covers Hagerstown, Maryland, in Washington County. Population: approximately 33,069 residents. Typical home value: $346,224, up +1.4% YoY.
Sources: US ZIP database · Zillow ZHVI · SEC EDGAR
Timezone
America/New_York
Latitude
39.6573°N
Longitude
-77.6921°
Verified United States Postal Service branch offices serving ZIP code 21742
-108 Oak St, Hagerstown, MD
⏰ Weekdays: 8:30 AM - 5:00 PM
🛂 Passport Services: No
Explore public and private academic systems, deposit branch offices, and visa sponsors registered near ZIP 21742.
State Schools
Local academic performance and classroom ratios for Maryland.
Financial Directory
Commercial bank deposits and branch metrics in the United States.
Labor Database
Sponsorship wages, certified petitions, and company rankings.
ZIP code 21742 is in Hagerstown, Maryland (Washington County).
The typical home value in ZIP 21742 is $346,224, up +1.4% year-over-year, per Zillow ZHVI data updated 2026-03-31.
ZIP code 21742 has approximately 33,069 residents.
Geographic data: US ZIP code database. Home values: Zillow Research ZHVI, updated 2026-03-31. Company data: SEC EDGAR.