Village in Waukesha County, Wisconsin · 2.5 sq mi · 894 people per sq mi
2,211 people live in Lannon. The typical household earns $83,889, and the median resident is 42.2 years old.
2026 projection
From 1,355 in 2020
Poverty rate 1.42%
Men 42.6 · Women 40.5
2010–2026
2,211
2026 projection
63.2% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
2010–2026
2,211
2026 projection
63.2% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 2,211 | +154 | 7.49% |
|---|---|---|---|
| 2025 | 2,057 | +19 | 0.93% |
| 2024 | 2,038 | +60 | 3.03% |
| 2023 | 1,978 | +35 | 1.80% |
| 2022 | 1,943 | +291 | 17.62% |
| 2021 | 1,652 | +297 | 21.92% |
| 2020 | 1,355 | +51 | 3.91% |
| 2019 | 1,304 | +23 | 1.80% |
| 2018 | 1,281 | +25 | 1.99% |
| 2017 | 1,256 | +42 | 3.46% |
Showing 10 of 17 years.
The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.
Lannon is growing faster than Waukesha County, Wisconsin, and the U.S.
Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.
Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 15 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
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 70 residents
48% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 48% | 43% | 54% |
| Never married | 27% | 32% | 22% |
| Divorced | 11% | 7% | 16% |
| Widowed | 14% | 19% | 9% |
| Separated | 0% | 0% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources