ZIP codes
18
Washington County, MD Demographics & ZIP Codes
Washington County, Maryland demographics and median household income by ZIP code — 18 ZIP codes — population 154,802 — avg. income $80,002 — avg. home value $298,520. Compare income, housing, and ZIP-level data on US5.
Population
154,802
Median household income (avg.)
$80,002
106% of U.S. median
Average home value
$298,520
86% of U.S. median
Average rent
$897
77% of U.S. median
Washington County demographics
Washington County, Maryland covers 18 ZIP codes, with a combined ZIP-area population of about 154,802.
Median household income in Washington County
The average median household income across ZIP codes in Washington County, Maryland is about $80,002 — about 28% below the MD ZIP average ($111,660), and about 6% above the U.S. median ($75,149).
Among ZIPs with income data, 21733 (St. James) is near the top at about $106,667, while 21767 (Maugansville) is near the bottom at about $44,960.
Housing in Washington County
For housing in Washington County, Maryland, the average median home value is about $298,520 and the average median rent is about $897.
The most populous ZIP is 21740 (Hagerstown) with about 63,140 residents. Use the table below to compare ZIP codes across the county.
ZIP codes in Washington County
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 21740 | Hagerstown | Washington County | MD | 63,140 | $59,410 | $241,600 |
| 21742 | Fountainhead-Orchard Hills | Washington County | MD | 35,114 | $80,533 | $280,100 |
| 21713 | Boonsboro | Washington County | MD | 10,146 | $101,585 | $348,300 |
| 21795 | Halfway | Washington County | MD | 9,942 | $83,542 | $275,500 |
| 21783 | Cavetown | Washington County | MD | 9,881 | $96,055 | $330,100 |
| 21722 | Wilson-Conococheague | Washington County | MD | 6,918 | $86,341 | $298,400 |
| 21782 | Mercersville | Washington County | MD | 4,056 | $89,375 | $295,900 |
| 21750 | Hancock | Washington County | MD | 3,585 | $54,188 | $212,700 |
| 21756 | Keedysville | Washington County | MD | 3,172 | $91,836 | $360,900 |
| 21746 | — | Washington County | MD | 2,416 | — | — |
| 21779 | Gapland | Washington County | MD | 1,449 | $80,743 | $551,400 |
| 21733 | St. James | Washington County | MD | 1,240 | $106,667 | $316,300 |
| 21719 | Highfield-Cascade | Washington County | MD | 1,162 | $75,278 | $230,500 |
| 21767 | Maugansville | Washington County | MD | 914 | $44,960 | $220,100 |
| 21734 | Funkstown | Washington County | MD | 826 | $58,438 | $241,900 |
| 21711 | Pecktonville | Washington County | MD | 789 | $91,083 | $274,100 |
| 21781 | St. James | Washington County | MD | 34 | — | — |
| 21715 | Brownsville | Washington County | MD | 18 | — | — |
Frequently asked questions
What are the demographics of Washington County?
Washington County, Maryland has a combined ZIP-area population of about 154,802 across 18 ZIP codes. Browse the ZIP table for population, income, and housing by code.
What is the median household income in Washington County?
The average median household income across ZIP codes in Washington County, Maryland is about $80,002, about 28% below the state ZIP average ($111,660), and about 6% above the U.S. median ($75,149). Average median home value is about $298,520. Among ZIPs with data, 21733 (St. James) is near the top ($106,667) and 21767 (Maugansville) is near the bottom ($44,960).
How many ZIP codes are in Washington County?
Washington County, Maryland includes 18 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Washington County?
This page lists ZIP codes in Washington County, Maryland with population, median household income, and home value. Select a ZIP for a full demographics profile.