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1790-1990: Population Percentage By Region

The following graph illustrates the expansion of the country from 1790 to 1990. The population moved from the original 13 colonies to the South and Midwest, and then to the West.

The following table shows the percentage of the total U.S. population located in each region for each census year:

Year13 ColoniesMidwestSouthWest
179097%3%
180093%1%6%
181085%4%11%
182077%9%14%
183071%13%16%
184062%20%18%
185057%23%19%1%
186050%29%19%2%
187047%34%17%3%
188044%35%18%4%
189041%36%18%5%
190041%35%19%6%
191040%32%19%8%
192040%32%19%9%
193040%31%19%10%
194039%30%19%11%
195038%29%19%13%
196037%29%19%16%
197036%28%19%17%
198034%26%21%19%
199033%24%22%21%

The states have been grouped into regions according to the way the U.S. Census Bureau defines geographical regions, except that all states that include land that was a part of the original 13 colonies have been grouped together in the above table and graph. That group includes all of the “Northeast” U.S. Census group, plus a part of the “South” U.S. Census group.

13 Colonies

StateGraph RegionU.S. Census Bureau Region
Maine13 ColoniesNortheast
New Hampshire13 ColoniesNortheast
Vermont13 ColoniesNortheast
Massachusetts13 ColoniesNortheast
Rhode Island13 ColoniesNortheast
Connecticut13 ColoniesNortheast
New York13 ColoniesNortheast
Pennsylvania13 ColoniesNortheast
New Jersey13 ColoniesNortheast
Delaware13 ColoniesSouth
Maryland13 ColoniesSouth
DC13 ColoniesSouth
Virginia13 ColoniesSouth
North Carolina13 ColoniesSouth
South Carolina13 ColoniesSouth
Georgia13 ColoniesSouth

Midwest

StateGraph RegionU.S. Census Bureau Region
OhioMidwestMidwest
IndianaMidwestMidwest
IllinoisMidwestMidwest
MichiganMidwestMidwest
WisconsinMidwestMidwest
MinnesotaMidwestMidwest
IowaMidwestMidwest
MissouriMidwestMidwest
North DakotaMidwestMidwest
South DakotaMidwestMidwest
NebraskaMidwestMidwest
KansasMidwestMidwest

South

StateGraph RegionU.S. Census Bureau Region
FloridaSouthSouth
KentuckySouthSouth
TennesseeSouthSouth
AlabamaSouthSouth
MississippiSouthSouth
ArkansasSouthSouth
LouisianaSouthSouth
OklahomaSouthSouth
TexasSouthSouth

West

StateGraph RegionU.S. Census Bureau Region
MontanaWestWest
IdahoWestWest
WyomingWestWest
ColoradoWestWest
New MexicoWestWest
ArizonaWestWest
UtahWestWest
NevadaWestWest
WashingtonWestWest
OregonWestWest
CaliforniaWestWest
AlaskaWestWest
HawaiiWestWest

Source: U.S. Census Bureau