Zip Code 21130 — Perryman, MD
21130 is a ZIP Code associated with Perryman, MD, located within Harford. 21130 ranks #20 out of 20 ZIP codes in Harford County by population (and #446 out of 477 in MD). The area supports an estimated population of 112 residents across Data Pending housing units, with a population density of 78.9 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (39.474950, -76.189210)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 21130 |
| Primary City | Perryman |
| State / Province | MD |
| County | Harford |
| Total Population | 112 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 78.9 people/sq mi |
| Timezone | America/New_York |
How 21130 Compares
| Metric | ZIP 21130 | Harford County | MD State Average |
|---|
| Population | 112 | 262,768 (Total) | 6,205,597 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 78.9 /sq mi | -- | -- |
| County Pop Rank | #20 of 20 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →