Kent County, MD ZIP codes
There are 9 ZIP codes in Kent County, MD, in 9 towns, from 21610 to 21678. The largest are 21620 (Chestertown), 21651 (Millington) and 21661 (Rock Hall).
The county seat is Chestertown.
- ZIP codes
- 9
- Towns
- 9
- County seat
- Chestertown
- County FIPS
24029- State
- Maryland
- Population
- 19,346
- Median household income
- $80,147
- Land area
- 277 sq mi
Kent County ZIP codes by town
- Chestertown (county seat)
- 21620
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Kent County ZIP codes
The ZIP codes of Kent County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Kent County in numbers
About 19,346 people live in Kent County, in 8,493 households, the 24th most populous of Maryland's 24 counties. The median household income is $80,147 a year, 23% below the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $330,900 (21% below the Maryland median), and median gross rent is $1,209 a month. The median age is 48.6; 39.6% of adults 25 and over hold a bachelor's degree or higher (43.4% across Maryland); the average commute takes 25 minutes.
| Population | 19,346 |
|---|---|
| Households | 8,493 |
| Median age | 48.6 |
| Median household income | $80,147 |
| Median home value | $330,900 |
| Median gross rent | $1,209 |
| Bachelor's degree or higher | 39.6% |
| Mean commute | 25.4 min |
| Population density | 70 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Kent County
| Town | ZIP codes | Population |
|---|---|---|
| Chestertown | 1 | 5,594 |
| Rock Hall | 1 | 1,215 |
| Galena | 1 | 728 |
| Millington | 1 | 469 |
| Betterton | 1 | 391 |
| Massey | 1 | 265 |
| Kennedyville | 1 | 205 |
| Worton | 1 | 126 |
| Still Pond | 1 | 102 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Kent County.
Not sure you are in Kent County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Kent County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
21610 | Betterton , MD | Standard | 391 | $86,250 | $226,700 |
21620 | Chestertown , MD | Standard | 13,810 | $80,530 | $347,500 |
21635 | Galena , MD | Standard | 2,085 | $101,618 | $402,000 |
21645 | Kennedyville , MD | Standard | 959 | $86,118 | $297,900 |
21650 | Massey , MD | Standard | 265 | — | $317,300 |
21651 | Millington , MD | Standard | 2,290 | $74,063 | $326,800 |
21661 | Rock Hall , MD | Standard | 2,613 | $90,492 | $283,200 |
21667 | Still Pond , MD | Standard | 291 | $64,122 | $205,600 |
21678 | Worton , MD | Standard | 1,658 | $71,023 | $319,000 |
Cite this page
zipcodes.pro. “Kent County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/md/county/kent
Underlying data is public domain or openly licensed — sources, vintages and licences.