Delaware Demographics Site Map

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Browse Delaware Zip Codes

• Zip Codes by Population

Largest 10 Counties by Population

1. New Castle County
2. Sussex County
3. Kent County

Largest 10 Cities by Population

1. Wilmington
2. Dover
3. Newark
4. Middletown
5. Bear
6. Glasgow
7. Brookside
8. Hockessin
9. Smyrna
10. Milford

Largest 10 Zip Codes by Population

1. 19720
2. 19702
3. 19709
4. 19711
5. 19701
6. 19805
7. 19808
8. 19904
9. 19901
10. 19966

20 Richest Counties in Delaware

1. New Castle County
2. Sussex County
3. Kent County

20 Richest Cities in Delaware

1. Greenville
2. Rehoboth Beach
3. Hockessin
4. Henlopen Acres
5. Slaughter Beach
6. St. Georges
7. North Star
8. Fenwick Island
9. Bethany Beach
10. South Bethany
11. Dewey Beach
12. Odessa
13. Townsend
14. Lewes
15. Pike Creek
16. Ardencroft
17. Highland Acres
18. Middletown
19. Viola
20. Glasgow