Knox County Population

1810–2026

64,440

2026 projection

2.6% since 2020 (increase)

010K20K30K40K50K60K70K1850190019502000

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Knox County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202664,440+4380.68%
202564,002+4380.69%
202463,564+3780.60%
202363,186+830.13%
202263,103+5980.96%
202162,505-2990.48%
202062,804+5650.91%
201962,239+3180.51%
201861,921+5760.94%
201761,345+3920.64%

Showing 10 of 36 years.

Knox County Demographics

39.4median age

Median age

Female40.4 yrs
Male38.5 yrs

Adults

48,756
12,126 seniors (65+) · 25% of adults36,630 other adults

Sex

Female 50.6% · 31,943Male 49.4% · 31,199

Population by age

MaleFemale85+ years, male: 58185+ years, female: 81480–84 years, male: 57080–84 years, female: 88875–79 years, male: 92575–79 years, female: 1,08470–74 years, male: 1,40070–74 years, female: 1,53465–69 years, male: 2,07565–69 years, female: 2,25560–64 years, male: 2,25360–64 years, female: 2,78455–59 years, male: 1,94355–59 years, female: 1,61550–54 years, male: 1,83950–54 years, female: 1,80245–49 years, male: 1,67145–49 years, female: 1,72740–44 years, male: 1,81940–44 years, female: 1,60535–39 years, male: 1,89435–39 years, female: 1,85330–34 years, male: 1,75030–34 years, female: 1,75325–29 years, male: 1,63525–29 years, female: 1,65520–24 years, male: 2,37220–24 years, female: 2,34915–19 years, male: 2,45715–19 years, female: 2,45910–14 years, male: 2,06510–14 years, female: 2,0635–9 years, male: 2,0575–9 years, female: 1,9660–4 years, male: 1,8930–4 years, female: 1,73785+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–41K1K2K2K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 631 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Knox County Income

$73,878median household income

Median household income

$73,878

Half of households earn more, half earn less

Median earnings

$50,196

Typical yearly pay for a worker 25 or older.

Poverty rate

11.6%

About 1 in 9 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Knox County Marital Status

53% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married53%54%52%
Never married29%33%26%
Divorced10%9%12%
Widowed6%3%9%
Separated1%1%2%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year