| Rank | County | Average People Per Household | 
|---|---|---|
| 1 | Calvert County, Maryland | 2.9 | 
| 2 | Charles County, Maryland | 2.9 | 
| 3 | Prince Georges County, Maryland | 2.8 | 
| 4 | Cecil County, Maryland | 2.8 | 
| 5 | St Marys County, Maryland | 2.8 | 
| 6 | Carroll County, Maryland | 2.8 | 
| 7 | Queen Annes County, Maryland | 2.7 | 
| 8 | Caroline County, Maryland | 2.7 | 
| 9 | Howard County, Maryland | 2.7 | 
| 10 | Harford County, Maryland | 2.7 | 
| 11 | Montgomery County, Maryland | 2.7 | 
| 12 | Frederick County, Maryland | 2.7 | 
| 13 | Anne Arundel County, Maryland | 2.6 | 
| 14 | Wicomico County, Maryland | 2.6 | 
| 15 | Washington County, Maryland | 2.5 | 
| 16 | Baltimore city, Maryland | 2.5 | 
| 17 | Baltimore County, Maryland | 2.5 | 
| 18 | Kent County, Maryland | 2.4 | 
| 19 | Talbot County, Maryland | 2.4 | 
| 20 | Garrett County, Maryland | 2.4 | 
| 21 | Dorchester County, Maryland | 2.4 | 
| 22 | Allegany County, Maryland | 2.4 | 
| 23 | Somerset County, Maryland | 2.3 | 
| 24 | Worcester County, Maryland | 2.3 | 
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