Data / Population / West Lafayette, IN

Population in West Lafayette, IN

Population in West Lafayette, IN was 45,747 in 2025, according to the U.S. Census Bureau. That is down 0.6% from 2024. That is the 23rd highest of 88 cities in 2025.

2025, persons45,747
Change on 2024-0.6%
Rank23rd of 88Cities in Indiana ranked
Series high46,0222024
Series low44,6542020

Next release: Friday, 14 May 2027, estimated by Invokely from past publication dates (low confidence), not announced by the publisher. Release calendar

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Population in West Lafayette, IN, 2020 to 2025

44.5K45K45.5K46K46.5K2020202120222023202420252020: 44,654 persons2021: 44,970 persons2022: 45,037 persons2023: 45,050 persons2024: 46,022 persons2025: 45,747 persons44.5K45K45.5K46K46.5K2020202220252020: 44,654 persons2021: 44,970 persons2022: 45,037 persons2023: 45,050 persons2024: 46,022 persons2025: 45,747 persons
persons. Source: U.S. Census Bureau, Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals). Retrieved 2026-10-12, published 2026-05-14.
All 6 values
Periodpersons
202545,747
202446,022
202345,050
202245,037
202144,970
202044,654

Compared with Indiana and United States

Place2025
West Lafayette, IN45,747
Indiana6,973,333
United States341,784,857

Rankings

Definition

Resident population. United States: Census Bureau population estimates for 1 July.

More on how it is measured
  • Spain and the EU: 1 January, with Spanish figures from the official municipal register (Padrón).
  • Norway: Statistics Norway, 1 January.
  • Iceland and its municipalities: Statistics Iceland, 1 January.
  • United Kingdom regions and local authorities: Office for National Statistics estimates for 30 June.
  • Other countries and the World: World Bank mid-year estimates, which count all residents regardless of legal status or citizenship.
  • UN World Population Prospects estimates for 1 July cover the years before 1960 and the areas the World Bank does not publish, such as Taiwan.

The World Bank series exists for every country, so use it (through compare) to rank countries on one basis.

How to cite

U.S. Census Bureau. Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals) (Population, West Lafayette, IN, 2020 to 2025) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/

MLA 9

Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals), Population, West Lafayette, IN, 2020 to 2025. U.S. Census Bureau, 14 May 2026, https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Invokely, https://invokely.ai/en/population/west-lafayette-in. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals). Population, West Lafayette, IN, 2020 to 2025. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Also distributed by Invokely, https://invokely.ai/en/population/west-lafayette-in.

Harvard

U.S. Census Bureau (2026) Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals), Population, West Lafayette, IN, 2020 to 2025 [Dataset]. Available at: https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/, via Invokely: https://invokely.ai/en/population/west-lafayette-in (Accessed: 12 October 2026).

BibTeX
@misc{census_population_west_lafayette_in_2025,
  author = {{U.S. Census Bureau}},
  title = {{Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals): Population, West Lafayette, IN, 2020 to 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/en/population/west-lafayette-in. Publisher attribution: U.S. Census Bureau. Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals): Population, West Lafayette, IN, 2020 to 2025
PY  - 2026
DA  - 2026/05/14
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/
L2  - https://invokely.ai/en/population/west-lafayette-in
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/population/west-lafayette-in.
N1  - Publisher attribution: U.S. Census Bureau. Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-12.
ER  -
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Questions

What is the population in West Lafayette, IN?

Population in West Lafayette, IN was 45,747 in 2025, according to the U.S. Census Bureau. That is down 0.6% from 2024. That is the 23rd highest of 88 cities in 2025.

Where does this figure come from?

U.S. Census Bureau. Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals). Retrieved by Invokely on 2026-10-12.

What was the highest population in West Lafayette, IN?

46,022 in 2024, the highest value since 2020 in this series.

Population elsewhere in Indiana

Related statistics for West Lafayette, IN

All statistics for West Lafayette, IN | West Lafayette, IN in figures