1930
County Total: 421,097
- Hartford (city) 164,072
- New Britain (city) 68,128
- Bristol (city) 28,451
- West Hartford 24,941
- Manchester 21,973
- East Hartford 17,125
- Enfield 13,404
- Southington 9,237
- Windsor 8,290
- Wethersfield 7,512
- Plainville 6,301
- Glastonbury 5,783
- Berlin 4,875
- Newington 4,572
- Farmington 4,548
- Suffield 4,346
- Windsor Locks 4,073
- East Windsor 3,815
- Simsbury 3,625
- Bloomfield 3,247
- South Windsor 2,535
- Canton 2,397
- Rocky Hill 2,021
- Avon 1,738
- Granby 1,388
- Burlington 1,082
- East Granby 1,003
- Marlborough 319
- Hartland 296
Read more about this topic: Historical United States Census Totals For Hartford County, Connecticut