Kent County area

Kent County, Maryland covers 413.4 square miles: 276.9 square miles of land and 136.5 square miles of water. Its county seat is Chestertown. An estimated 19,565 people lived there in 2025.

Official Census measurements · GEOID 240292026 Gazetteer · retrieved September 27, 2026
Land area276.9 mi²
Water area136.5 mi²
Population (2025)19,565
People per mi²71

County outline

Generalized outline of Kent County, Maryland
2025 Census cartographic boundary, fitted to this frame. County maps are not at a common scale. The 2026 area measurements below come from the separate Gazetteer release. Map source and limitations.

Where Kent County is located

Kent County highlighted on a map of all U.S. county equivalents. About the maps

Area breakdown

Land accounts for 67% of Kent County’s measured area and water for 33%. Its combined area converts to 1,070.8 square kilometers or approximately 264,605 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land276.937717.264177,239.7
Water136.508353.55487,365.1
Total413.4451,070.818264,604.8

How Kent County compares

By original Census land area, Kent County ranks #20 of 24 in Maryland and #2855 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 0.662 times the Maryland county-equivalent median of 418.5 square miles. It accounts for 2.9% of the combined county land area in the state.

See the complete Maryland ranking · What counts as a county equivalent?

Population and density of Kent County

The Census Bureau estimates that 19,565 people lived in Kent County on July 1, 2025. That ranks #1,914 of 3,222 county equivalents nationally and #24 of 24 in Maryland. Since the April 1, 2020 estimates base of 19,198, the population has grown by 367 (+1.9%), compared with +1.4% for Maryland as a whole.

With 276.9 square miles of land, that is 71 people per square mile (27 per km²), placing Kent County #1,252 nationally for density and #22 in Maryland. The median county equivalent has 47 people per square mile; the Maryland median is 335. Put another way, there are about 9.1 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate19,12519,22719,34219,44819,51719,565
Change—+102+115+106+69+48

U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.

Cities and towns in Kent County

5 incorporated places lie at least partly in Kent County. Together they are home to 8,212 people (42%); the other 11,353 (58%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Chestertown town, with 5,658 residents in the county. Among places with at least 1,000 residents in 2020, Chestertown town grew fastest since then (+2.2%).

Incorporated placePopulation 2025Since 2020Land mi²
Chestertown townCounty seat5,658+2.2%2.878
Rock Hall town1,208+1.1%1.296
Galena town541−0.4%0.494
Millington townAlso in 1 other county522−0.8%0.946
Betterton town283−1%0.986

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Kent County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.

Metropolitan area

Kent County is not part of any metropolitan or micropolitan statistical area in the Office of Management and Budget’s July 2023 delineation; 1,306 other county equivalents are also outside one. These areas are built around an urban core of at least 10,000 people plus the counties tied to it by commuting, so counties outside them are generally rural.

ZIP codes

9 ZIP Code Tabulation Areas have land in Kent County, and each lies mostly inside the county.

216102162021635216452165021651216612166721678

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Kent County

Kent County shares a land border with 4 county equivalents, including 2 in Delaware. Each of them has more land than Kent County. The largest neighbor is Kent County (586.1 mi²) and the smallest is Cecil County (346.3 mi²). Together with its neighbors, Kent County forms a block of 2,007.3 mi² of land, of which it holds 13.8%.

Map of Kent County and the 4 county equivalents that border it Queen Anne's County, Maryland: 371.7 mi² landCecil County, Maryland: 346.3 mi² landNew Castle County, Delaware: 426.3 mi² landKent County, Delaware: 586.1 mi² land
Kent County (dark) and its bordering county equivalents. Select a neighbor to open its profile. Drawn from the 2025 Census cartographic boundaries in an equal-area projection. How borders are determined.
Bordering county equivalentLand mi²Size vs. KentCompare
Kent CountyDelaware586.12.1× largerCompare
New Castle CountyDelaware426.31.5× largerCompare
Queen Anne's County371.71.3× largerCompare
Cecil County346.31.3× largerCompare

How big is Kent County compared with U.S. states?

Kent County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 3.7 times as much. Maryland’s county land could hold about 35 areas the size of Kent County.

Land area: Kent County and the closest-sized states
Kent County276.9 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 16.6 miles (26.8 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.

State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.

What stands out about Kent County?

Kent County has more land than 367 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Kent County276.9 mi²
Maryland median418.5 mi²
National median604.5 mi²

A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.

Does including water change its rank?

Using land plus water places Kent County at #2,522 nationally by total area, 333 places closer to the top than its land rank. The water assigned to this geography moves it ahead of some county equivalents with more land.

Its water share is 33%, compared with a national county-equivalent median of 1.2% — 31.8 percentage points higher. This describes the statistical geography’s land/water mix, not flood exposure or developable land.

Closest positions in the national land ranking

These entries sit immediately beside Kent County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#2854Pendleton County, Kentucky277.1Compare
#2855Kent County, Maryland276.9This county
#2856Habersham County, Georgia276.9Compare

Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.

Representative coordinates

The Census internal point is 39.241279, -76.125986. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.

Source and precision

U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 717,264,485 m²; AWATER: 353,554,237 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.

Download the official county source ZIP ↗ · Methodology

Common questions

How big is Kent County?

Kent County, Maryland has 276.9 square miles (717.3 km²) of land and 136.5 square miles of water, for a total area of 413.4 square miles. It ranks #2855 of 3,222 U.S. county equivalents by land area.

Is Kent County the largest county in Maryland?

No. Kent County ranks #20 of 24 in Maryland by land area. The largest is Frederick County, with 660.7 square miles of land.

What counties border Kent County?

Kent County shares a land border with Queen Anne's County, Cecil County, New Castle County, Delaware, and Kent County, Delaware.

What is the population of Kent County?

The Census Bureau estimates Kent County had 19,565 residents on July 1, 2025, ranking #1,914 of 3,222 county equivalents. That is 71 people per square mile of land.

What is the county seat of Kent County?

The county seat of Kent County is Chestertown.

What cities and towns are in Kent County?

Kent County has 5 incorporated places. The most populous are Chestertown town, Rock Hall town, Galena town, Millington town, and Betterton town; 11,353 residents live outside any incorporated place.

Is Kent County part of a metropolitan area?

No. Kent County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.

How many ZIP codes are in Kent County?

9 ZIP Code Tabulation Areas have land in Kent County, and 9 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

How does Kent County compare with U.S. states?

It has less land than every state. Rhode Island, the smallest, has 3.7 times as much land.

How many acres of land are in Kent County?

The land measurement converts to approximately 177,240 acres. Including water, total area is approximately 264,605 acres. One square mile equals 640 acres.

Why might another source show a different area?

Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.

Can this establish a property boundary?

No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.

Cite this county

Download the complete CSV or JSON dataset