How many counties in Maryland? All 24 listed
Quick answer
Maryland has 24 counties and county equivalents holding 6,170,738 residents. The most populous county in Maryland is Montgomery County with 1,057,586 residents; the smallest is Kent County. County boundaries divide the state's land area — measured in square miles by the Census Bureau — into the units used for property assessment, elections and local sales tax. The statewide sales tax base rate is 6% with no local add-ons.
All 24 counties
Ranked by population, Census 2019-2023 ACS 5-year estimates.
| County | Population | Median income | Median home value | Median rent |
|---|---|---|---|---|
| Montgomery County | 1,057,586 | $128,733 | $615,200 | $2,030 |
| Prince George's County | 955,584 | $100,708 | $404,300 | $1,761 |
| Baltimore County | 849,586 | $90,904 | $330,000 | $1,566 |
| Anne Arundel County | 590,936 | $120,324 | $450,300 | $1,990 |
| Baltimore city | 577,193 | $59,623 | $219,300 | $1,290 |
| Howard County | 333,916 | $146,982 | $576,700 | $2,038 |
| Frederick County | 280,341 | $120,458 | $437,700 | $1,706 |
| Harford County | 262,509 | $111,317 | $367,300 | $1,557 |
| Carroll County | 174,318 | $115,876 | $406,400 | $1,370 |
| Charles County | 168,710 | $120,592 | $402,300 | $1,897 |
| Washington County | 155,033 | $74,157 | $275,900 | $1,100 |
| St. Mary's County | 114,372 | $114,580 | $390,900 | $1,692 |
| Cecil County | 104,366 | $91,146 | $311,800 | $1,367 |
| Wicomico County | 104,117 | $72,861 | $238,900 | $1,238 |
| Calvert County | 93,791 | $132,059 | $440,200 | $1,701 |
| Allegany County | 67,762 | $57,393 | $149,200 | $786 |
| Worcester County | 53,279 | $81,455 | $348,100 | $1,180 |
| Queen Anne's County | 50,951 | $113,347 | $441,800 | $1,611 |
| Talbot County | 37,707 | $84,378 | $398,300 | $1,248 |
| Caroline County | 33,406 | $66,368 | $272,400 | $1,070 |
| Dorchester County | 32,612 | $60,495 | $252,300 | $959 |
| Garrett County | 28,713 | $69,031 | $217,000 | $710 |
| Somerset County | 24,685 | $52,462 | $164,300 | $938 |
| Kent County | 19,265 | $74,402 | $307,100 | $1,144 |
Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year
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