Demographics · MO
Lee's Summit, MO demographics: 103,656 residents, with a median age of 38.8 years, from the U.S. Census Bureau's American Community Survey 2020–2024 (5-year estimates).
103,656people live in Lee's Summit, at a median age of 38.8 years (American Community Survey 2020–2024, a 5-year average)
Median age 38.8 years — about even with the U.S. median of 38.9.
ACS 2020–2024 5-year · ACS 5-Year Estimates 2020-2024 (released 2026-01-29)
In Lee's Summit, the largest race group is White (78.4%); 6.1% of residents are Hispanic or Latino (of any race); 4.3% were born outside the United States.
ACS 2020–2024 · B01001 / B01002
The median age in Lee's Summit is 38.8 years (±1.0), about the same as the U.S. median of 38.9 years. The population is 48.8% male and 51.2% female. The largest age band is 5 to 17 at 19.7%.
| Age band | People | Share | ± margin |
|---|---|---|---|
| Under 5 | 6,050 | 5.8% | ±602 |
| 5 to 17 | 20,429 | 19.7% | ±1,184 |
| 18 to 24 | 7,265 | 7.0% | ±700 |
| 25 to 34 | 11,595 | 11.2% | ±850 |
| 35 to 44 | 15,450 | 14.9% | ±1,018 |
| 45 to 54 | 13,089 | 12.6% | ±789 |
| 55 to 64 | 13,002 | 12.5% | ±899 |
| 65 to 74 | 9,466 | 9.1% | ±619 |
| 75 and over | 7,310 | 7.1% | ±602 |
Median age by sex: 38.2 (male) · 39.2 (female).
Shares may not sum to 100% due to rounding. Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B01001 sex by age, B01002 median age) · place-grain · margins of error at the 90% confidence level · methodology →
ACS 2020–2024 · B02001 / B03003
The largest race group in Lee's Summit is White at 78.4% of the population. Separately, 6.1% of residents are Hispanic or Latino of any race.Race and Hispanic origin are two different questions on the census form, so their shares are reported separately and are not additive.
| Race (alone, or two or more) | People | Share | ± margin |
|---|---|---|---|
| White alone | 81,264 | 78.4% | ±1,512 |
| Black or African American alone | 10,058 | 9.7% | ±1,129 |
| American Indian & Alaska Native alone | 265 | 0.3% | ±161 · low precision |
| Asian alone | 1,962 | 1.9% | ±516 |
| Native Hawaiian & Pacific Islander alone | 406 | 0.4% | ±204 · low precision |
| Some other race alone | 2,107 | 2.0% | ±966 |
| Two or more races | 7,594 | 7.3% | ±1,090 |
| Hispanic or Latino (of any race) | 6,369 | 6.1% | ±1,124 |
Race shares may not sum to 100% due to rounding; race and Hispanic origin are separate questions and are not additive. Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B02001 race, B03003 Hispanic or Latino origin) · place-grain · margins of error at the 90% confidence level · methodology →
ACS 2020–2024 · B11001 / B25010
Lee's Summit has 40,526 households. 69.6% are family households and 24.9% are people living alone. The average household holds 2.54 people.
Total households
40,526
ACS 2020–2024 5-yr · B11001
Avg household size
2.54
ACS 2020–2024 5-yr · B25010 · ±0.06
Family households
69.6%
Share of all households · B11001
Living alone
24.9%
Share of all households · B11001
| Household type | Households | ± margin |
|---|---|---|
| Total households | 40,526 | ±905 |
| Family households | 28,223 | ±702 |
| Nonfamily households | 12,303 | ±1,049 |
| Householder living alone | 10,084 | ±1,021 |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B11001 household type, B25010 average household size) · place-grain · methodology →
ACS 2020–2024 · B05002 / C16001
4.3% of Lee's Summit residents were born outside the United States. 93.9% of residents age 5 and over speak only English at home. The most-spoken non-English language at home is Spanish (2.7%).
| Measure | Value | Source / grain |
|---|---|---|
| Foreign-born share | 4.3% | 4,492 people · B05002 |
| Speak only English at home (age 5+) | 93.9% | C16001 |
| Top non-English language at home | 2.7% | Spanish · 2,596 speakers · C16001 |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B05002 place of birth, C16001 language spoken at home) · place-grain · methodology →
ACS 2020–2024 · B15003
48.8% of adults age 25 and over in Lee's Summit hold a bachelor's degree or higher (the U.S. share is about 35%).
| Measure | Value | Source / grain |
|---|---|---|
| Bachelor's degree or higher (age 25+) | 48.8% | B15003 lines 22–25 over line 1 · place-grain |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B15003 educational attainment, population 25+) · place-grain · methodology →
Sources · provenance
The GEOID for Lee's Summit is 2941348. Every figure on this page is a place-grain American Community Survey 5-Year 2020–2024 estimate (ACS 5-Year Estimates 2020-2024 (released 2026-01-29)) shown with its margin of error. Full per-dataset detail: /sources/.