Overview
1,785
Total Population
45.5
Median age
49.75%
Female population %
101:100
Gender ratio (M:F)
65-69 years
Largest age group
66.7
Total dependency ratio
White
Largest racial group
37
Hispanic population
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Lanark town's population is old compared to the rest of the country:
- The median age in Lanark town is 45.5, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
- Lanark town's population under 18 was 20.45%, compared to the 22.51% nationwide.
- Lanark town's elderly or the senior population (over 65 age) was 24.31% as compared to 16.04% nationwide.
- Of the total population in Lanark town, 15.69% were under the age of 15, 18.49% aged 15 to 29, 41.51% aged 30 to 64, 23.42% aged 65 to 84, and 0.90% were 85 years of age and older.

Read more about Lanark, Wisconsin population by age ➔
Gender
There are 9 less females than males in Lanark town:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 49.75% females and 50.25% males in Lanark, Wisconsin.
- The Lanark, Wisconsin gender ratio is 101:100 i.e. 101 men to 100 women (1.010).
- For male population, the largest age group is 70-74 years with a population of 86.
- For the female population, the largest age group is 65-69 years with a population of 191.

Read more about Lanark, Wisconsin population by gender ➔
Race / Ethnicity
Lanark town's population has become increasingly diverse:
- Racial distribution of Lanark town population: 98.71% are White, 0.34% are Black or African American, 0.22% are some other race and 0.73% are multiracial.
- Lanark town's racial breakdown clearly shows that there is an absolute majority of White population in the town.
- By ethnicity, 37 is Hispanic or Latino (of any race), and 1,748 (97.93% of the total population) is Non-Hispanic.
- The largest racial group in Lanark town is White with a population of 1,762 (98.71% of the total population).

Read more about Lanark, Wisconsin population by race ➔
Year by year
Lanark town's population has already reached its peak and is showing a trend of decline:
- The peak population was 1,578 in the year 2019
- From 2000 to 2010, Lanark town's population increased by 80 (5.52%), as compared to the national growth of 9.63%.
- From 2010 to 2020, Lanark town's population decreased by 0 (0.00%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
- Between the year 2000 and 2022, Lanark town's population was lowest in year 2000 at 1,450.

Read more about Lanark, Wisconsin population by year ➔
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates
- U.S. Census Bureau Population Estimates Population Estimates Program (PEP)