| Census Year |
|
U.S. Population |
|
No. of States |
|
No. of Counties |
|
Territories Included in Census |
|
| 1790 |
|
3,929,214 |
|
14 |
|
292 |
|
Southwest (tally only) |
|
| 1800 |
|
5,308,483 |
|
16 |
|
419 |
|
Northwest, IN, & MI |
|
| 1810 |
|
7,239,881 |
|
17 |
|
574 |
|
IL, IN, MI, MS, LA (MO), & Orleans |
|
| 1820 |
|
9,638,453 |
|
22 |
|
759 |
|
AR, MI, & MO |
|
| 1830 |
|
12,860,702 |
|
24 |
|
988 |
|
AR, FL, & MI |
|
| 1840 |
|
17,063,353 |
|
26 |
|
1,279 |
|
IA, FL, & WI |
|
| 1850 |
|
23,191,876 |
|
30 |
|
1,623 |
|
MN, NM, OR, & UT/1851 |
|
| 1860 |
|
31,443,321 |
|
33 |
|
2,080 |
|
KS, NM, NE, UT, WA, Indian, & Unorganized Dakota |
|
| 1870 |
|
38,558,371 |
|
37 |
|
2,295 |
|
AZ, CO, ID, NM, MT, UT, WA, WY, Dakota, & Indian |
|
| 1880 |
|
50,189,209 |
|
38 |
|
2,570 |
|
AK, AZ, ID, NM, MT, UT, WA, WY, Dakota, & Indian |
|
| 1890 |
|
62,979,766 |
|
44 |
|
2,813 |
|
AK, AZ, NM, OK, UT, & Indian |
|
| 1900 |
|
76,212,168 |
|
45 |
|
2,862 |
|
AK, AZ, HI, NM, OK, & Indian |
|
| 1910 |
|
92,228,496 |
|
46 |
|
2,962 |
|
AK, AZ, NM, HI, Puerto Rico |
|
| 1920 |
|
106,021,537 |
|
48 |
|
3,076 |
|
AK, HI, Guam, Midway, Canal Zone, Puerto Rico, American Samoa, Virgin, Islands, & Wake Island |
|
| 1930 |
|
123,202,624 |
|
48 |
|
3,110 |
|
AK, HI, Guam, Midway, Canal Zone, Puerto Rico, American Samoa, Virgin, Islands, & Wake Island |
|
| 1940 |
|
132,164,569 |
|
48 |
|
3,108 |
|
AK, HI, Guam, Midway, Canal Zone, Puerto Rico, American Samoa, Virgin, Islands, & Wake Island |
|
| 1950 |
|
151,325,798 |
|
48 |
|
3,111 |
|
AK, HI, Guam, Midway, Canal Zone, Puerto Rico, American Samoa, Virgin, Islands, & Wake Island |
|
| 1960 |
|
179,323,175 |
|
50 |
|
3,133 |
|
Guam, Midway, Canal Zone Puerto Rico, American Samoa, Virgin Islands, & Wake Island |
|
| 1970 |
|
203,211,926 |
|
50 |
|
3,142 |
|
Guam, Midway, Canal Zone Puerto Rico, American Samoa, Virgin Islands, & Wake Island |
|
| 1980 |
|
226,545,805 |
|
50 |
|
3,137 |
|
Guam, Midway, Canal Zone Puerto Rico, American Samoa, Virgin Islands, & Wake Island |
|
| 1990 |
|
248,709,873 |
|
50 |
|
3,141 |
|
Guam, Midway, Canal Zone Puerto Rico, American Samoa, Virgin Islands, & Wake Island |
|
|
