ZIP codes
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Preston, MD Demographics & ZIP Codes
Preston, Maryland demographics and median household income by ZIP code (in Caroline County) — 1 ZIP codes — population 4,995 — median income $85,608 — avg. home value $291,200. Compare income, housing, and population across ZIP codes on US5.
Population
4,995
Median household income (avg.)
$85,608
114% of U.S. median
Average home value
$291,200
84% of U.S. median
Average rent
$1,030
89% of U.S. median
Median age (avg.)
42.5
Preston demographics
Preston, Maryland covers 1 ZIP code primarily in Caroline County, with a combined ZIP-area population of about 4,995.
Across ZIP codes with age data, the average median age is about 42.5 years.
Median household income in Preston
The average median household income across ZIP codes in Preston, Maryland is about $85,608 — about 23% below the MD ZIP average ($111,660), and about 14% above the U.S. median ($75,149).
The highest median household income among listed ZIPs is about $85,608 in 21655.
Housing in Preston
For housing in Preston, Maryland, the average median home value is about $291,200 and the average median rent is about $1,030.
The most populous ZIP in this set is 21655 (about 4,995 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in Preston
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 21655 | Preston | Caroline County | MD | 4,995 | $85,608 | $291,200 |
Frequently asked questions
What are the demographics of Preston?
Preston, Maryland has a combined ZIP-area population of about 4,995 across 1 ZIP codes (primarily Caroline County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in Preston?
The average median household income across ZIP codes in Preston, Maryland is about $85,608, about 23% below the state ZIP average ($111,660), and about 14% above the U.S. median ($75,149). Average median home value is about $291,200.
How many ZIP codes are in Preston?
Preston, Maryland includes 1 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Preston?
This page lists ZIP codes in Preston, Maryland with population, median household income, and home value. Select a ZIP for a full demographics profile.