ZIP codes
8
Caroline County, MD Demographics & ZIP Codes
Caroline County, Maryland demographics and median household income by ZIP code — 8 ZIP codes — population 32,666 — avg. income $68,739 — avg. home value $266,188. Compare income, housing, and ZIP-level data on US5.
Population
32,666
Median household income (avg.)
$68,739
91% of U.S. median
Average home value
$266,188
76% of U.S. median
Average rent
$884
76% of U.S. median
Caroline County demographics
Caroline County, Maryland covers 8 ZIP codes, with a combined ZIP-area population of about 32,666.
Median household income in Caroline County
The average median household income across ZIP codes in Caroline County, Maryland is about $68,739 — about 38% below the MD ZIP average ($111,660), and about 9% below the U.S. median ($75,149).
Among ZIPs with income data, 21655 (Preston) is near the top at about $85,608, while 21639 (Greensboro) is near the bottom at about $59,274.
Housing in Caroline County
For housing in Caroline County, Maryland, the average median home value is about $266,188 and the average median rent is about $884.
The most populous ZIP is 21629 (Denton) with about 10,285 residents. Use the table below to compare ZIP codes across the county.
ZIP codes in Caroline County
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 21629 | Denton | Caroline County | MD | 10,285 | $70,117 | $293,700 |
| 21632 | Federalsburg | Caroline County | MD | 6,227 | $59,808 | $192,800 |
| 21655 | Preston | Caroline County | MD | 4,995 | $85,608 | $291,200 |
| 21639 | Greensboro | Caroline County | MD | 4,621 | $59,274 | $270,300 |
| 21660 | Ridgely | Caroline County | MD | 4,244 | $76,917 | $322,500 |
| 21640 | Henderson | Caroline County | MD | 1,251 | $65,952 | $260,200 |
| 21636 | Goldsboro | Caroline County | MD | 913 | $66,818 | $257,100 |
| 21641 | Hillsboro | Caroline County | MD | 130 | $65,417 | $241,700 |
Frequently asked questions
What are the demographics of Caroline County?
Caroline County, Maryland has a combined ZIP-area population of about 32,666 across 8 ZIP codes. Browse the ZIP table for population, income, and housing by code.
What is the median household income in Caroline County?
The average median household income across ZIP codes in Caroline County, Maryland is about $68,739, about 38% below the state ZIP average ($111,660), and about 9% below the U.S. median ($75,149). Average median home value is about $266,188. Among ZIPs with data, 21655 (Preston) is near the top ($85,608) and 21639 (Greensboro) is near the bottom ($59,274).
How many ZIP codes are in Caroline County?
Caroline County, Maryland includes 8 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Caroline County?
This page lists ZIP codes in Caroline County, Maryland with population, median household income, and home value. Select a ZIP for a full demographics profile.