Tri-Cities Population
The Tri-Cities, WA MSA – comprising of Benton and Franklin Counties – has a combined population of over 320,000 people. The region is one of the fastest-growing areas in the Pacific Northwest, driven by a diverse mix of industries, a relatively low cost of living, and a high quality of life.
The population is characterized by a youthful demographic, with a median age lower than the national average, and a diverse community that continues to expand as more people move to the area for work, education, and lifestyle opportunities.
Population Data: Tri-Cities MSA
Location | 2000 Census | 2010 Census | 2020 Census | 2024 Estimate |
Tri-Cities, Kennewick-Pasco-Richland MSA | 191,822 | 253,340 | 303,622 | 320,150320,150 |
Benton County | 142,475 | 175,177 | 206,873 | 217,850 |
Kennewick | 54,751 | 73,917 | 83,921 | 87,120 |
Richland | 38,708 | 48,058 | 60,560 | 64,190 |
West Richland | 8,385 | 11,811 | 16,295 | 18,280 |
Prosser | 4,838 | 5,714 | 6,062 | 6,610 |
Benton City | 2,624 | 3,038 | 3,479 | 3,845 |
Franklin County | 49,347 | 78,163 | 96,749 | 102,300 |
Pasco | 32,066 | 59,781 | 77,108 | 82,220 |
Connell | 2,956 | 4,209 | 5,441 | 5,175 |
Mesa | 425 | 489 | 385 | 400 |
Kahlotus | 214 | 193 | 147 | 145 |
Source: Office of Financial Management (link: https://ofm.wa.gov/washington-data-research/population-demographics/population-estimates), April 1 Official Population Estimates Released on June 28, 2024 | ||||
Gender | 2000 Census | 2010 Census | 2020 Census | 2024 Estimate |
Male | 49.9% | 50.3% | 50.7% | 50.5% |
Female | 50.1% | 49.7% | 49.3% | 49.5% |
Race/Ethnicity | 2010 Census | 2020 Census | 2022 Estimate |
White | 65.0% | 57.2% | 56.0% |
Black | 1.3% | 1.4% | 1.5% |
American Indian or Alaska Native | 0.7% | 0.5% | 0.6% |
Asian | 2.5% | 2.7% | 2.8% |
Native Hawaiian or Other Pacific Islander | 0.1% | 0.2% | 0.3% |
Two or More Races | 1.8% | 4.2% | 4.1% |
Hispanic or Latino | 28.7% | 33.8% | 34.8% |
Non-Hispanic or Latino | 71.3% | 66.2% | 65.2% |
Age Range | 2010 Census | 2020 Census | 2024 Estimate |
0 – 9 | 16.6% | 15.4% | 14.3% |
10 – 19 | 15.5% | 15.4% | 15.5% |
20 – 29 | 13.8% | 13.0% | 13.0% |
30 – 39 | 13.2% | 13.6% | 14.2% |
40 – 49 | 12.8% | 12.0% | 12.4% |
50 – 59 | 12.8% | 11.3% | 10.5% |
60 – 64 | 4.9% | 5.5% | 5.4% |
65+ | 10.4% | 13.8% | 14.7% |
Age | 2000 Census | 2010 Census | 2020 Census | 2022 Estimate |
Total Population | 32.7 | 32.0 | 323.6 | 34 |
