| Rank | County | Percentage of White Residents | 
|---|---|---|
| 1 | Garrett County, Maryland | 97.7% | 
| 2 | Carroll County, Maryland | 93.3% | 
| 3 | Cecil County, Maryland | 90.0% | 
| 4 | Queen Annes County, Maryland | 89.8% | 
| 5 | Allegany County, Maryland | 89.1% | 
| 6 | Washington County, Maryland | 85.2% | 
| 7 | Frederick County, Maryland | 83.7% | 
| 8 | Talbot County, Maryland | 83.5% | 
| 9 | Worcester County, Maryland | 83.0% | 
| 10 | Calvert County, Maryland | 82.0% | 
| 11 | Caroline County, Maryland | 81.9% | 
| 12 | Kent County, Maryland | 81.8% | 
| 13 | Harford County, Maryland | 81.4% | 
| 14 | St Marys County, Maryland | 79.5% | 
| 15 | Anne Arundel County, Maryland | 76.9% | 
| 16 | Wicomico County, Maryland | 69.5% | 
| 17 | Dorchester County, Maryland | 68.6% | 
| 18 | Baltimore County, Maryland | 64.8% | 
| 19 | Montgomery County, Maryland | 63.2% | 
| 20 | Howard County, Maryland | 62.3% | 
| 21 | Somerset County, Maryland | 54.6% | 
| 22 | Charles County, Maryland | 50.0% | 
| 23 | Baltimore city, Maryland | 31.4% | 
| 24 | Prince Georges County, Maryland | 26.5% | 
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