Name | Population | Altitude | Latitude | Longitude |
Harkness Creek Park : |
| 2 m | 38°56'35.2" N | 76°30'34.9" W |
Harlow : |
| 80 m | 39°5'35.2" N | 77°19'8.0" W |
Harmans : |
| 43 m | 39°9'25.9" N | 76°41'48.8" W |
Harmans Woods : |
| 45 m | 39°8'39.8" N | 76°42'24.8" W |
Harmon Haven : |
| 167 m | 39°33'49.0" N | 77°11'55.0" W |
Harmon Landing : |
| 1 m | 38°11'48.1" N | 75°15'38.9" W |
Harmon Landing Estates : |
| 6 m | 38°12'11.2" N | 75°17'44.9" W |
Harmony : |
| 15 m | 38°46'44.0" N | 75°52'50.9" W |
Harmony Corner : |
| 15 m | 39°19'12.0" N | 75°58'37.9" W |
Harmony Grove : |
| 91 m | 39°27'13.0" N | 77°23'57.8" W |
Harmony Hall : |
| 221 m | 39°17'38.0" N | 77°13'43.0" W |
Harmony Hill : |
| 112 m | 39°30'24.8" N | 77°24'11.9" W |
Harmony Hills : |
| 98 m | 39°24'58.0" N | 76°29'46.0" W |
Harmony Knolls : |
| 215 m | 39°29'55.0" N | 77°32'10.0" W |
Harness Woods : |
| 13 m | 38°56'37.0" N | 76°30'15.1" W |
Harney : |
| 151 m | 39°42'50.0" N | 77°12'24.8" W |
Harney Venture Estates : |
| 126 m | 39°42'24.8" N | 77°17'12.8" W |
Harold Heights : |
| 106 m | 39°30'33.1" N | 76°17'56.0" W |
Harp : |
| 266 m | 39°31'54.8" N | 77°31'40.1" W |
Harper Estates : |
| 204 m | 39°32'39.8" N | 76°53'39.8" W |
Harpers Choice : |
| 128 m | 39°13'9.1" N | 76°52'59.9" W |
Harpers Mill : |
| 35 m | 39°6'59.0" N | 76°37'54.1" W |
Harrington : |
| 255 m | 39°32'24.0" N | 76°58'41.9" W |
Harrington Manor : |
| 72 m | 39°25'13.1" N | 76°31'41.9" W |
Harris Heights : |
| 224 m | 39°12'4.0" N | 76°37'16.0" W |
Harris Hill : |
| 244 m | 39°43'8.0" N | 76°38'38.0" W |
Harrisonville : |
| 187 m | 39°23'8.9" N | 76°50'1.0" W |
Harristown : |
| 151 m | 39°17'16.1" N | 76°44'35.2" W |
Harrisville : |
| 168 m | 39°25'12.0" N | 77°8'43.1" W |
Harrisville Farmettes : |
| 137 m | 39°26'8.9" N | 77°11'35.2" W |
Harrisville Heights : |
| 182 m | 39°26'10.0" N | 77°10'30.0" W |
Harshman Estates : |
| 199 m | 39°31'21.0" N | 77°32'44.2" W |
Harting Estates : |
| 7 m | 39°3'43.9" N | 76°30'59.0" W |
Hartland Run : |
| 1 m | 39°17'58.9" N | 76°26'35.9" W |
Hartland Village : |
| 1 m | 39°18'11.2" N | 76°26'53.2" W |
Hartley Hall Estates : |
| 106 m | 39°5'10.0" N | 77°17'53.9" W |
Hartman : |
| 148 m | 39°23'31.9" N | 77°18'50.0" W |
Harundale : |
| 15 m | 39°9'10.1" N | 76°36'54.0" W |
Harvest Acres : |
| 137 m | 39°28'48.0" N | 77°42'50.0" W |
Harvest Farms : |
| 158 m | 39°23'3.8" N | 76°55'30.0" W |
Harvest Hills : |
| 198 m | 39°26'49.9" N | 77°9'55.1" W |
Harvest Hunt Farm : |
| 107 m | 39°5'31.9" N | 77°16'40.1" W |
Harvest Ridge : |
| 200 m | 39°21'51.8" N | 77°11'44.9" W |
Harvey : |
| 305 m | 39°42'11.2" N | 78°16'41.2" W |
Harwood : |
| 45 m | 38°51'55.1" N | 76°37'13.1" W |
Harwood Estates : |
| 45 m | 38°52'31.1" N | 76°36'2.2" W |
Harwood Park : |
| 30 m | 39°11'37.0" N | 76°44'17.2" W |
Hassengers Corner : |
| 15 m | 39°15'56.9" N | 76°2'51.0" W |
Hathaway : |
| 207 m | 39°26'28.0" N | 76°48'50.0" W |
Haughs Hideway : |
| 137 m | 39°35'49.9" N | 77°16'55.9" W |
Havenwood : |
| 118 m | 39°25'45.1" N | 76°37'9.1" W |
Havenwood Hills : |
| 212 m | 39°38'30.1" N | 77°35'52.1" W |
Haver Hill : |
| 144 m | 39°24'16.9" N | 76°33'9.0" W |
Haverford : |
| 128 m | 39°26'30.8" N | 76°37'19.9" W |
Haviland Hills : |
| 150 m | 39°11'46.0" N | 76°59'43.1" W |
Havre De Grace (Havre De Grace) : | 11 505 | 1 m | 39°32'57.1" N | 76°5'30.8" W |
Hawbottom : |
| 290 m | 39°28'25.0" N | 77°30'29.2" W |
Hawbottom Heights : |
| 290 m | 39°28'27.1" N | 77°30'24.8" W |
Hawkeye : |
| 6 m | 38°33'33.8" N | 75°55'9.1" W |
Hawlings Hills : |
| 109 m | 39°10'45.1" N | 77°1'39.0" W |
Hawlings Meadow : |
| 152 m | 39°12'20.2" N | 77°5'3.8" W |
Hawlings River Estates : |
| 112 m | 39°11'48.1" N | 77°2'48.8" W |
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