A region's economy thrives or dives because of the people who choose to live there. That choice may occur by being born there and desiring to stay, or a more deliberate one of choosing to relocate from somewhere else. Monitoring change in the size and movement of population is an important barometer of well-being.
| Population Over Time | |||||
| 2000 | 2010 | 2017 | 2020 | 2023 | |
| Total Population | 39,868 | 41,886 | 42,520 | 43,631 | 43,546 |
| Change Since 2000 | 2,018 | 2,652 | 3,763 | 3,678 | |
| Pct. Change Since 2000 | 5.1% | 6.7% | 9.4% | 9.2% | |
| Components of Population Change 2022 to 2023 | ||
| Number | ||
| Net Domestic Migration | 2 | |
| International Migration | 51 | |
| Natural Increase (births minus deaths) | 1 | |
| Births | 498 | |
| Deaths | 497 | |
| Population Estimates by Age in 2022 | ||
| Number | Pct. Dist | |
| Preschool (0 to 4) | 2,700 | 6.2% |
| School Age (5 to 17) | 7,801 | 17.9% |
| College Age (18 to 24) | 3,512 | 8.1% |
| Young Adult (25 to 44) | 9,947 | 22.9% |
| Older Adult (45 to 64) | 11,361 | 26.1% |
| Older (65 plus) | 8,311 | 19.1% |
| Population Estimates by Race and Hispanic Origin in 2022 | ||
| Number | Pct. Dist | |
| American Ind. or Alaskan Native Alone | 153 | 0.4% |
| Asian Alone | 323 | 0.7% |
| Black Alone | 468 | 1.1% |
| Native Hawaiian and Other Pac. Isl. Alone | 72 | 0.2% |
| White Alone | 42,225 | 97.1% |
| Two or More Race Groups | 391 | 0.9% |
| Hispanic or Latino | ||
| Non-Hispanic or Latino | 39,648 | 91.2% |
| Hispanic or Latino | 3,984 | 9.2% |
| Households in 2022 | ||
| Number | Pct. Dist | |
| Total Households | 17,437 | 100.0% |
| Family Households | 11,218 | 64.3% |
| Married with Children | 3,149 | 18.1% |
| Married without Children | 5,867 | 33.6% |
| Single Parents | 1,329 | 7.6% |
| Other | 873 | 5.0% |
| Non-family Households | 6,219 | 35.7% |
| Living Alone | 5,314 | 30.5% |
| Average Household Size | 2.49 | |
| Average Family Household Size | 3.88 | |
| Population Counts by Decade | |||
| Population | Numerical Chg. | Pct. Chg. | |
| 1950 | 23,785 | NA | NA |
| 1960 | 27,463 | 3,678 | 15.5% |
| 1970 | 30,934 | 3,471 | 12.6% |
| 1980 | 34,238 | 3,304 | 10.7% |
| 1990 | 36,616 | 2,378 | 6.9% |
| 2000 | 39,868 | 3,252 | 8.9% |
| 2010 | 41,886 | 2,018 | 5.1% |
| 2020 | 43,631 | 1,745 | 4.2% |
| Population Projections | |||||
| 2010 | 2015 | 2020 | 2025 | 2030 | |
| Population Projections | 41,889 | 42,421 | 43,133 | 44,179 | 45,218 |
| Change Since 2010 | 532 | 1,244 | 2,290 | 3,329 | |
| Pct. Change Since 2010 | 1.3% | 3.0% | 5.5% | 7.9% | |