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 | 2018 | 2020 | 2025 | |
| Total Population | 182,763 | 274,555 | 330,635 | 347,490 | 387,036 |
| Change Since 2000 | 91,792 | 147,872 | 164,727 | 204,273 | |
| Pct. Change Since 2000 | 50.2% | 80.9% | 90.1% | 111.8% | |
| Components of Population Change 2024 to 2025 | ||
| Number | ||
| Net Domestic Migration | 4,121 | |
| International Migration | 1,602 | |
| Natural Increase (births minus deaths) | 1,618 | |
| Births | 3,962 | |
| Deaths | 2,344 | |
| Population Estimates by Age in 2025 | ||
| Number | Pct. Dist | |
| Preschool (0 to 4) | 21,548 | 5.6% |
| School Age (5 to 17) | 71,670 | 18.5% |
| College Age (18 to 24) | 32,063 | 8.3% |
| Young Adult (25 to 44) | 100,996 | 26.1% |
| Older Adult (45 to 64) | 98,729 | 25.5% |
| Older (65 plus) | 62,030 | 16.0% |
| Population Estimates by Race and Hispanic Origin in 2025 | ||
| Number | Pct. Dist | |
| American Ind. or Alaskan Native Alone | 1,462 | 0.4% |
| Asian Alone | 31,884 | 8.2% |
| Black Alone | 21,412 | 5.5% |
| Native Hawaiian and Other Pac. Isl. Alone | 333 | 0.1% |
| White Alone | 316,838 | 81.9% |
| Two or More Race Groups | 15,107 | 3.9% |
| Hispanic or Latino | ||
| Non-Hispanic or Latino | 361,688 | 93.5% |
| Hispanic or Latino | 25,348 | 6.5% |
| Households in 2024 | ||
| Number | Pct. Dist | |
| Total Households | 137,252 | 100.0% |
| Family Households | 100,708 | 73.4% |
| Married with Children | 41,280 | 30.1% |
| Married without Children | 44,588 | 32.5% |
| Single Parents | 8,423 | 6.1% |
| Other | 6,417 | 4.7% |
| Non-family Households | 36,544 | 26.6% |
| Living Alone | 29,872 | 21.8% |
| Average Household Size | 2.77 | |
| Average Family Household Size | 3.77 | |
| Population Counts by Decade | |||
| Population | Numerical Chg. | Pct. Chg. | |
| 1950 | 28,491 | NA | NA |
| 1960 | 40,132 | 11,641 | 40.9% |
| 1970 | 54,532 | 14,400 | 35.9% |
| 1980 | 82,027 | 27,495 | 50.4% |
| 1990 | 108,936 | 26,909 | 32.8% |
| 2000 | 182,763 | 73,827 | 67.8% |
| 2010 | 274,555 | 91,792 | 50.2% |
| 2020 | 347,490 | 72,935 | 26.6% |
| Population Projections | |||||
| 2020 | 2025 | 2030 | 2035 | 2040 | |
| Population Projections | 348,966 | 384,401 | 417,426 | 448,296 | 476,482 |
| Change Since 2020 | 35,435 | 68,460 | 99,330 | 127,516 | |
| Pct. Change Since 2020 | 10.2% | 19.6% | 28.5% | 36.5% | |