Maryland Population By County in 2018
Updated on June 22, 2021.
According to the US Census Bureau population estimates, there were 6,035,802 people living in Maryland in 2018. Montgomery County was the most populated county with 1,048,478 residents, followed by Prince George's County with 909,619 residents, and Baltimore County with 827,859 residents. Kent County with a population of 19,434 was the least populated county in Maryland in 2018.
Use the map below to interactively explore the population of each county in Maryland in 2018. The data can also be explored further by sorting and filtering with the table below.
Hover/Click on the counties to see the values.
Maryland Population By County (2018)
Table of Maryland Population By County in 2018
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| County | Population | % of State Population |
|---|---|---|
| Allegany | 70,941 | 1.18% |
| Anne Arundel | 575,523 | 9.54% |
| Baltimore | 827,859 | 13.72% |
| Calvert | 92,065 | 1.53% |
| Caroline | 33,306 | 0.55% |
| Carroll | 168,267 | 2.79% |
| Cecil | 102,644 | 1.70% |
| Charles | 161,476 | 2.68% |
| Dorchester | 31,960 | 0.53% |
| Frederick | 254,943 | 4.22% |
| Garrett | 29,133 | 0.48% |
| Harford | 253,882 | 4.21% |
| Howard | 322,621 | 5.35% |
| Kent | 19,434 | 0.32% |
| Montgomery | 1,048,478 | 17.37% |
| Prince George's | 909,619 | 15.07% |
| Queen Anne's | 50,148 | 0.83% |
| St. Mary's | 112,720 | 1.87% |
| Somerset | 25,606 | 0.42% |
| Talbot | 37,074 | 0.61% |
| Washington | 150,656 | 2.50% |
| Wicomico | 103,044 | 1.71% |
| Worcester | 51,960 | 0.86% |
| Baltimore city | 602,443 | 9.98% |
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