Maryland Counties Map

Maryland highlighted on the US map.
The State of Maryland highlighted on the US map.

Map of Maryland Counties

Below is a map of the 23 counties of Maryland (you can click on the map to enlarge it and to see the major city in each state).

Colorful Maryland counties map showing counties, main cities, rivers, and neighboring counties.
Maryland Counties Map with cities.

Interactive Map of Maryland Counties

Click on any of the counties on the map to see the county’s population, economic data, time zone, and zip code (the data will appear below the map). Data is sourced from the US Census 2021.

List of the Counties of Maryland:

Note: Baltimore City is an independent city and not part of any county, even though it is surrounded by Baltimore County.

CountyPopulationPer sq. kmLargest City
Allegany County68,68462.81Cumberland
Anne Arundel County584,064543.64Glen Burnie
Baltimore City592,2112824.77Baltimore
Baltimore County850,702548.93Dundalk
Calvert County92,515167.55Chesapeake Ranch Estates
Caroline County33,23440.17Denton
Carroll County172,148148.49Eldersburg
Cecil County103,370115.25Elkton
Charles County165,209139.33Waldorf
Dorchester County32,48623.19Cambridge
Frederick County267,498156.35Frederick
Garrett County28,95517.22Oakland
Harford County259,162228.91Bel Air South
Howard County329,248506.57Columbia
Kent County19,33526.95Chestertown
Montgomery County1,057,201827.75Germantown
Prince George’s County957,767766.18Bowie
Queen Anne’s County49,70251.63Stevensville
Somerset County24,83429.99Princess Anne
St. Mary’s County113,209121.89California
Talbot County37,51053.93Easton
Washington County153,956129.85Hagerstown
Wicomico County103,223106.44Salisbury
Worcester County52,32243.13Ocean Pines

Montgomery County (MD) Facts:

🏙️ Biggest City: Germantown
🧑🏻‍🤝‍🧑🏻 Population: 1,057,201
🧑🏻‍🤝‍🧑🏻 Density: 827.75/km2
🧑🏻‍🤝‍🧑🏻 Median age: 39.6
💰 Median Individual Income: $53,134
💰 Median Household Income: $117,345
💰 Six-figure households: 57.3%
🏠 Home Ownership: 65.4%
🏠 Median Owner Occupied Home Value: $508,508
🏠 Median Gross Rent: $1,844
🕜 Timezone: America/New_York
🌐 Latitude: 39.1363 | Longitude: -77.2042
📮 Zip Codes: 20705 20707 20777 20810 20811 20812 20813 20814 20815 20816 20817 20818 20824 20825 20827 20830 20832 20833 20837 20838 20839 20841 20842 20847 20848 20849 20850 20851 20852 20853 20854 20855 20857 20859 20860 20861 20862 20866 20868 20871 20872 20874 20875 20876 20877 20878 20879 20880 20882 20883 20884 20885 20886 20889 20891 20892 20894 20895 20896 20897 20898 20899 20901 20902 20903 20904 20905 20906 20907 20908 20910 20911 20912 20913 20914 20915 20916 20918 20993 20997 21771 21797

Prince George's County (MD) Facts:

🏙️ Biggest City: Bowie
🧑🏻‍🤝‍🧑🏻 Population: 957,767
🧑🏻‍🤝‍🧑🏻 Density: 766.18/km2
🧑🏻‍🤝‍🧑🏻 Median age: 37.8
💰 Median Individual Income: $43,553
💰 Median Household Income: $91,124
💰 Six-figure households: 45.3%
🏠 Home Ownership: 62.2%
🏠 Median Owner Occupied Home Value: $337,592
🏠 Median Gross Rent: $1,593
🕜 Timezone: America/New_York
🌐 Latitude: 38.8295 | Longitude: -76.8473
📮 Zip Codes: 20601 20607 20608 20613 20623 20697 20703 20704 20705 20706 20707 20708 20709 20710 20712 20715 20716 20717 20718 20719 20720 20721 20722 20725 20726 20731 20735 20737 20738 20740 20741 20742 20743 20744 20745 20746 20747 20748 20749 20750 20752 20753 20757 20762 20768 20769 20770 20771 20772 20773 20774 20775 20781 20782 20783 20784 20785 20787 20788 20790 20791 20792 20797 20799 20903 20904 20912

Baltimore County (MD) Facts:

🏙️ Biggest City: Dundalk
🧑🏻‍🤝‍🧑🏻 Population: 850,702
🧑🏻‍🤝‍🧑🏻 Density: 548.93/km2
🧑🏻‍🤝‍🧑🏻 Median age: 39.4
💰 Median Individual Income: $42,309
💰 Median Household Income: $81,846
💰 Six-figure households: 40.7%
🏠 Home Ownership: 66.5%
🏠 Median Owner Occupied Home Value: $277,364
🏠 Median Gross Rent: $1,387
🕜 Timezone: America/New_York
🌐 Latitude: 39.4627 | Longitude: -76.6393
📮 Zip Codes: 21013 21020 21022 21023 21027 21030 21031 21043 21051 21052 21053 21057 21065 21071 21074 21082 21085 21087 21092 21093 21094 21102 21104 21105 21111 21117 21120 21128 21131 21133 21136 21139 21152 21153 21155 21156 21161 21162 21163 21204 21206 21207 21208 21209 21210 21212 21215 21219 21220 21221 21222 21224 21227 21228 21229 21234 21235 21236 21237 21239 21241 21244 21250 21252 21282 21284 21285 21286 21289

Baltimore City (MD) Facts:

🏙️ Biggest City: Baltimore
🧑🏻‍🤝‍🧑🏻 Population: 592,211
🧑🏻‍🤝‍🧑🏻 Density: 2824.77/km2
🧑🏻‍🤝‍🧑🏻 Median age: 35.7
💰 Median Individual Income: $32,686
💰 Median Household Income: $54,124
💰 Six-figure households: 25.4%
🏠 Home Ownership: 47.9%
🏠 Median Owner Occupied Home Value: $177,423
🏠 Median Gross Rent: $1,146
🕜 Timezone: America/New_York
🌐 Latitude: 39.3051 | Longitude: -76.6144
📮 Zip Codes: 21201 21202 21203 21205 21206 21207 21208 21209 21210 21211 21212 21213 21214 21215 21216 21217 21218 21222 21223 21224 21225 21226 21227 21228 21229 21230 21231 21233 21234 21236 21237 21239 21251 21263 21264 21270 21273 21275 21278 21279 21281 21287 21290 21297 21298

Anne Arundel County (MD) Facts:

🏙️ Biggest City: Glen Burnie
🧑🏻‍🤝‍🧑🏻 Population: 584,064
🧑🏻‍🤝‍🧑🏻 Density: 543.64/km2
🧑🏻‍🤝‍🧑🏻 Median age: 38.5
💰 Median Individual Income: $51,899
💰 Median Household Income: $108,048
💰 Six-figure households: 54%
🏠 Home Ownership: 74.5%
🏠 Median Owner Occupied Home Value: $380,465
🏠 Median Gross Rent: $1,764
🕜 Timezone: America/New_York
🌐 Latitude: 39.0065 | Longitude: -76.6051
📮 Zip Codes: 20701 20711 20714 20724 20733 20736 20751 20754 20755 20758 20764 20765 20776 20778 20779 20794 21012 21032 21035 21037 21054 21056 21060 21061 21062 21076 21077 21090 21106 21108 21113 21114 21122 21123 21140 21144 21146 21225 21226 21240 21401 21402 21403 21404 21405 21409 21411 21412

Howard County (MD) Facts:

🏙️ Biggest City: Columbia
🧑🏻‍🤝‍🧑🏻 Population: 329,248
🧑🏻‍🤝‍🧑🏻 Density: 506.57/km2
🧑🏻‍🤝‍🧑🏻 Median age: 39
💰 Median Individual Income: $61,518
💰 Median Household Income: $129,549
💰 Six-figure households: 63.1%
🏠 Home Ownership: 72.9%
🏠 Median Owner Occupied Home Value: $483,006
🏠 Median Gross Rent: $1,790
🕜 Timezone: America/New_York
🌐 Latitude: 39.2507 | Longitude: -76.9312
📮 Zip Codes: 20588 20701 20723 20759 20763 20777 20794 20833 20862 21029 21036 21041 21042 21043 21044 21045 21046 21075 21076 21104 21150 21163 21723 21737 21738 21765 21771 21784 21794 21797

Frederick County (MD) Facts:

🏙️ Biggest City: Frederick
🧑🏻‍🤝‍🧑🏻 Population: 267,498
🧑🏻‍🤝‍🧑🏻 Density: 156.35/km2
🧑🏻‍🤝‍🧑🏻 Median age: 38.8
💰 Median Individual Income: $47,947
💰 Median Household Income: $106,129
💰 Six-figure households: 52.9%
🏠 Home Ownership: 76.4%
🏠 Median Owner Occupied Home Value: $356,051
🏠 Median Gross Rent: $1,503
🕜 Timezone: America/New_York
🌐 Latitude: 39.4722 | Longitude: -77.398
📮 Zip Codes: 20842 20871 21701 21702 21703 21704 21705 21709 21710 21714 21716 21717 21718 21719 21727 21754 21755 21757 21758 21759 21762 21769 21770 21771 21773 21774 21775 21776 21777 21778 21780 21783 21787 21788 21790 21791 21792 21793 21798

Harford County (MD) Facts:

🏙️ Biggest City: Bel Air South
🧑🏻‍🤝‍🧑🏻 Population: 259,162
🧑🏻‍🤝‍🧑🏻 Density: 228.91/km2
🧑🏻‍🤝‍🧑🏻 Median age: 40.4
💰 Median Individual Income: $45,797
💰 Median Household Income: $98,495
💰 Six-figure households: 49.2%
🏠 Home Ownership: 79.5%
🏠 Median Owner Occupied Home Value: $315,518
🏠 Median Gross Rent: $1,355
🕜 Timezone: America/New_York
🌐 Latitude: 39.5611 | Longitude: -76.3171
📮 Zip Codes: 21001 21005 21009 21010 21013 21014 21015 21017 21018 21028 21034 21040 21047 21050 21078 21082 21084 21085 21087 21111 21130 21132 21154 21160 21161

Carroll County (MD) Facts:

🏙️ Biggest City: Eldersburg
🧑🏻‍🤝‍🧑🏻 Population: 172,148
🧑🏻‍🤝‍🧑🏻 Density: 148.49/km2
🧑🏻‍🤝‍🧑🏻 Median age: 41.7
💰 Median Individual Income: $46,133
💰 Median Household Income: $104,708
💰 Six-figure households: 52.2%
🏠 Home Ownership: 82.9%
🏠 Median Owner Occupied Home Value: $353,071
🏠 Median Gross Rent: $1,228
🕜 Timezone: America/New_York
🌐 Latitude: 39.5629 | Longitude: -77.0225
📮 Zip Codes: 21048 21074 21088 21102 21104 21136 21155 21157 21158 21757 21771 21776 21784 21787 21791 21797

Charles County (MD) Facts:

🏙️ Biggest City: Waldorf
🧑🏻‍🤝‍🧑🏻 Population: 165,209
🧑🏻‍🤝‍🧑🏻 Density: 139.33/km2
🧑🏻‍🤝‍🧑🏻 Median age: 38.7
💰 Median Individual Income: $51,774
💰 Median Household Income: $107,808
💰 Six-figure households: 54.2%
🏠 Home Ownership: 78.3%
🏠 Median Owner Occupied Home Value: $338,418
🏠 Median Gross Rent: $1,725
🕜 Timezone: America/New_York
🌐 Latitude: 38.5073 | Longitude: -76.9922
📮 Zip Codes: 20601 20602 20603 20604 20607 20611 20612 20613 20616 20617 20622 20625 20632 20637 20640 20643 20645 20646 20658 20659 20661 20662 20664 20675 20677 20682 20693 20695

Washington County (MD) Facts:

🏙️ Biggest City: Hagerstown
🧑🏻‍🤝‍🧑🏻 Population: 153,956
🧑🏻‍🤝‍🧑🏻 Density: 129.85/km2
🧑🏻‍🤝‍🧑🏻 Median age: 40.6
💰 Median Individual Income: $32,947
💰 Median Household Income: $67,349
💰 Six-figure households: 31.8%
🏠 Home Ownership: 65.6%
🏠 Median Owner Occupied Home Value: $227,243
🏠 Median Gross Rent: $979
🕜 Timezone: America/New_York
🌐 Latitude: 39.6036 | Longitude: -77.814
📮 Zip Codes: 21711 21713 21715 21719 21720 21721 21722 21733 21734 21740 21741 21742 21746 21747 21749 21750 21756 21758 21767 21769 21779 21780 21781 21782 21783 21795

St. Mary's County (MD) Facts:

🏙️ Biggest City: California
🧑🏻‍🤝‍🧑🏻 Population: 113,209
🧑🏻‍🤝‍🧑🏻 Density: 121.89/km2
🧑🏻‍🤝‍🧑🏻 Median age: 36.7
💰 Median Individual Income: $46,867
💰 Median Household Income: $102,859
💰 Six-figure households: 52%
🏠 Home Ownership: 71.7%
🏠 Median Owner Occupied Home Value: $325,942
🏠 Median Gross Rent: $1,492
🕜 Timezone: America/New_York
🌐 Latitude: 38.3024 | Longitude: -76.6058
📮 Zip Codes: 20606 20609 20618 20619 20620 20621 20622 20624 20626 20627 20628 20630 20634 20636 20650 20653 20656 20659 20660 20667 20670 20674 20680 20684 20686 20687 20690 20692

Cecil County (MD) Facts:

🏙️ Biggest City: Elkton
🧑🏻‍🤝‍🧑🏻 Population: 103,370
🧑🏻‍🤝‍🧑🏻 Density: 115.25/km2
🧑🏻‍🤝‍🧑🏻 Median age: 41
💰 Median Individual Income: $39,717
💰 Median Household Income: $81,817
💰 Six-figure households: 38.6%
🏠 Home Ownership: 75.7%
🏠 Median Owner Occupied Home Value: $262,662
🏠 Median Gross Rent: $1,202
🕜 Timezone: America/New_York
🌐 Latitude: 39.5712 | Longitude: -75.9407
📮 Zip Codes: 21901 21902 21903 21904 21911 21912 21913 21914 21915 21916 21917 21918 21919 21920 21921 21922 21930

Wicomico County (MD) Facts:

🏙️ Biggest City: Salisbury
🧑🏻‍🤝‍🧑🏻 Population: 103,223
🧑🏻‍🤝‍🧑🏻 Density: 106.44/km2
🧑🏻‍🤝‍🧑🏻 Median age: 36
💰 Median Individual Income: $30,785
💰 Median Household Income: $63,610
💰 Six-figure households: 27.7%
🏠 Home Ownership: 58.4%
🏠 Median Owner Occupied Home Value: $189,814
🏠 Median Gross Rent: $1,105
🕜 Timezone: America/New_York
🌐 Latitude: 38.3733 | Longitude: -75.6208
📮 Zip Codes: 21801 21802 21803 21804 21810 21814 21822 21826 21830 21836 21837 21840 21849 21850 21852 21856 21861 21865 21874 21875

Calvert County (MD) Facts:

🏙️ Biggest City: Chesapeake Ranch Estates
🧑🏻‍🤝‍🧑🏻 Population: 92,515
🧑🏻‍🤝‍🧑🏻 Density: 167.55/km2
🧑🏻‍🤝‍🧑🏻 Median age: 40.2
💰 Median Individual Income: $53,543
💰 Median Household Income: $120,295
💰 Six-figure households: 60.8%
🏠 Home Ownership: 85.3%
🏠 Median Owner Occupied Home Value: $374,061
🏠 Median Gross Rent: $1,526
🕜 Timezone: America/New_York
🌐 Latitude: 38.5434 | Longitude: -76.5687
📮 Zip Codes: 20610 20615 20629 20639 20657 20676 20678 20685 20688 20689 20714 20732 20736 20754 20758

Allegany County (MD) Facts:

🏙️ Biggest City: Cumberland
🧑🏻‍🤝‍🧑🏻 Population: 68,684
🧑🏻‍🤝‍🧑🏻 Density: 62.81/km2
🧑🏻‍🤝‍🧑🏻 Median age: 41.4
💰 Median Individual Income: $26,248
💰 Median Household Income: $51,090
💰 Six-figure households: 18.1%
🏠 Home Ownership: 68.8%
🏠 Median Owner Occupied Home Value: $129,744
🏠 Median Gross Rent: $719
🕜 Timezone: America/New_York
🌐 Latitude: 39.6214 | Longitude: -78.6976
📮 Zip Codes: 21501 21502 21503 21504 21505 21521 21524 21528 21529 21530 21532 21539 21540 21542 21543 21545 21555 21556 21557 21560 21562 21766

Worcester County (MD) Facts:

🏙️ Biggest City: Ocean Pines
🧑🏻‍🤝‍🧑🏻 Population: 52,322
🧑🏻‍🤝‍🧑🏻 Density: 43.13/km2
🧑🏻‍🤝‍🧑🏻 Median age: 50.4
💰 Median Individual Income: $35,696
💰 Median Household Income: $71,262
💰 Six-figure households: 33.4%
🏠 Home Ownership: 76.3%
🏠 Median Owner Occupied Home Value: $279,076
🏠 Median Gross Rent: $1,068
🕜 Timezone: America/New_York
🌐 Latitude: 38.2128 | Longitude: -75.334
📮 Zip Codes: 19975 21804 21811 21813 21822 21829 21841 21842 21843 21851 21862 21863 21864 21872

Queen Anne's County (MD) Facts:

🏙️ Biggest City: Stevensville
🧑🏻‍🤝‍🧑🏻 Population: 49,702
🧑🏻‍🤝‍🧑🏻 Density: 51.63/km2
🧑🏻‍🤝‍🧑🏻 Median age: 44.7
💰 Median Individual Income: $46,728
💰 Median Household Income: $99,597
💰 Six-figure households: 49.8%
🏠 Home Ownership: 81.5%
🏠 Median Owner Occupied Home Value: $373,827
🏠 Median Gross Rent: $1,550
🕜 Timezone: America/New_York
🌐 Latitude: 39.068 | Longitude: -76.0203
📮 Zip Codes: 21607 21617 21619 21620 21623 21628 21638 21640 21644 21649 21651 21656 21657 21658 21666 21668 21679

Talbot County (MD) Facts:

🏙️ Biggest City: Easton
🧑🏻‍🤝‍🧑🏻 Population: 37,510
🧑🏻‍🤝‍🧑🏻 Density: 53.93/km2
🧑🏻‍🤝‍🧑🏻 Median age: 51
💰 Median Individual Income: $41,087
💰 Median Household Income: $79,349
💰 Six-figure households: 39%
🏠 Home Ownership: 73.5%
🏠 Median Owner Occupied Home Value: $336,992
🏠 Median Gross Rent: $1,195
🕜 Timezone: America/New_York
🌐 Latitude: 38.7713 | Longitude: -76.0971
📮 Zip Codes: 21601 21612 21624 21625 21647 21652 21653 21654 21657 21658 21662 21663 21665 21671 21673 21676 21679

Caroline County (MD) Facts:

🏙️ Biggest City: Denton
🧑🏻‍🤝‍🧑🏻 Population: 33,234
🧑🏻‍🤝‍🧑🏻 Density: 40.17/km2
🧑🏻‍🤝‍🧑🏻 Median age: 39.2
💰 Median Individual Income: $30,501
💰 Median Household Income: $63,027
💰 Six-figure households: 27.3%
🏠 Home Ownership: 72.1%
🏠 Median Owner Occupied Home Value: $223,071
🏠 Median Gross Rent: $1,026
🕜 Timezone: America/New_York
🌐 Latitude: 38.8717 | Longitude: -75.8316
📮 Zip Codes: 21609 21629 21632 21636 21639 21640 21641 21649 21655 21657 21660 21670

Dorchester County (MD) Facts:

🏙️ Biggest City: Cambridge
🧑🏻‍🤝‍🧑🏻 Population: 32,486
🧑🏻‍🤝‍🧑🏻 Density: 23.19/km2
🧑🏻‍🤝‍🧑🏻 Median age: 44.1
💰 Median Individual Income: $30,186
💰 Median Household Income: $55,652
💰 Six-figure households: 25.8%
🏠 Home Ownership: 68.9%
🏠 Median Owner Occupied Home Value: $186,532
🏠 Median Gross Rent: $878
🕜 Timezone: America/New_York
🌐 Latitude: 38.4829 | Longitude: -76.0125
📮 Zip Codes: 19973 21613 21622 21626 21627 21631 21632 21634 21643 21648 21659 21664 21669 21672 21675 21677 21835 21869

Garrett County (MD) Facts:

🏙️ Biggest City: Oakland
🧑🏻‍🤝‍🧑🏻 Population: 28,955
🧑🏻‍🤝‍🧑🏻 Density: 17.22/km2
🧑🏻‍🤝‍🧑🏻 Median age: 47.3
💰 Median Individual Income: $31,514
💰 Median Household Income: $58,011
💰 Six-figure households: 24.5%
🏠 Home Ownership: 79.5%
🏠 Median Owner Occupied Home Value: $193,010
🏠 Median Gross Rent: $637
🕜 Timezone: America/New_York
🌐 Latitude: 39.5289 | Longitude: -79.2729
📮 Zip Codes: 21520 21521 21522 21523 21531 21532 21536 21538 21539 21541 21550 21561 21562

Somerset County (MD) Facts:

🏙️ Biggest City: Princess Anne
🧑🏻‍🤝‍🧑🏻 Population: 24,834
🧑🏻‍🤝‍🧑🏻 Density: 29.99/km2
🧑🏻‍🤝‍🧑🏻 Median age: 37
💰 Median Individual Income: $22,626
💰 Median Household Income: $48,661
💰 Six-figure households: 18.4%
🏠 Home Ownership: 67.6%
🏠 Median Owner Occupied Home Value: $138,403
🏠 Median Gross Rent: $839
🕜 Timezone: America/New_York
🌐 Latitude: 38.1158 | Longitude: -75.7518
📮 Zip Codes: 21810 21817 21821 21822 21824 21838 21851 21853 21857 21866 21867 21871 21890

Kent County (MD) Facts:

🏙️ Biggest City: Chestertown
🧑🏻‍🤝‍🧑🏻 Population: 19,335
🧑🏻‍🤝‍🧑🏻 Density: 26.95/km2
🧑🏻‍🤝‍🧑🏻 Median age: 47.1
💰 Median Individual Income: $35,464
💰 Median Household Income: $64,451
💰 Six-figure households: 33.9%
🏠 Home Ownership: 68%
🏠 Median Owner Occupied Home Value: $266,915
🏠 Median Gross Rent: $1,025
🕜 Timezone: America/New_York
🌐 Latitude: 39.2545 | Longitude: -76.0399
📮 Zip Codes: 21610 21620 21635 21645 21650 21651 21661 21667 21678 21690