Data / Population / South Elgin, IL

Population in South Elgin, IL

Population in South Elgin, IL was 25,656 in 2025, according to the U.S. Census Bureau. That is up 2.7% from 2024. That is the 87th highest of 225 cities in 2025.

2025, persons25,656
Change on 2024+2.7%
Rank87th of 225Cities in Illinois ranked
Series high25,6562025
Series low23,8232020

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 South Elgin, IL, 2020 to 2025

23.5K24K24.5K25K25.5K26K2020202120222023202420252020: 23,823 persons2021: 23,933 persons2022: 24,012 persons2023: 24,363 persons2024: 24,973 persons2025: 25,656 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
202525,656
202424,973
202324,363
202224,012
202123,933
202023,823

Compared with Illinois and United States

Place2025
South Elgin, IL25,656
Illinois12,719,141
United States341,784,857

Rankings

Definition

Resident population. 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 States: Census Bureau population estimates for 1 July. 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, South Elgin, IL, 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, South Elgin, IL, 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/south-elgin-il. 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, South Elgin, IL, 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/south-elgin-il.

Harvard

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

BibTeX
@misc{census_population_south_elgin_il_2025,
  author = {{U.S. Census Bureau}},
  title = {{Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals): Population, South Elgin, IL, 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/south-elgin-il. 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, South Elgin, IL, 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/south-elgin-il
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/population/south-elgin-il.
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 South Elgin, IL?

Population in South Elgin, IL was 25,656 in 2025, according to the U.S. Census Bureau. That is up 2.7% from 2024. That is the 87th highest of 225 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 South Elgin, IL?

25,656 in 2025, the highest value since 2020 in this series.

Population elsewhere in Illinois

Related statistics for South Elgin, IL

All statistics for South Elgin, IL | South Elgin, IL in figures