Residential delivery area · Illinois
ZIP Code 60543: Oswego, IL
ZIP code 60543 uses the postal name Oswego, Illinois and lies entirely in Kendall County (Census 2020 ZIP-county file). About 43,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $119,371 (Census Bureau, ACS 2020-2024). By Census place, 34% of its land lies in Oswego, and 5% in smaller places; 61% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Oswego · its only residential ZIP
- County
- Kendall County
- Census places
- Oswego
- Metro area
- Chicago-Naperville-Elgin, IL-IN
- House district
- IL-14 119th Congress
- State
- Illinois
- Time zone
- Central
- Land area
- 41.9 sq mi · 1,026 people per sq mi
Where is ZIP code 60543?
60543 centers on 41.668°, -88.323° and covers 41.9 square miles of land plus 0.5 of water. It borders 6 ZIP codes: 60538, 60503, 60585, 60512, 60544, 60560.
The map draws ZIP code areas only. For the streets inside 60543, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 60543 compare with the rest of Kendall County?
| Measure | 60543 | In Kendall County | In IL |
|---|---|---|---|
| People (ACS 2020-2024) | 43,047 | 2nd of 17 | 57th of 1,396 |
| Median household income | $119k | 6th of 14 | 92nd of 797 |
| Median home value | $344k | 4th of 14 | 128th of 842 |
Its median household income is higher than in 90% of U.S. residential ZIP codes, and it is denser than 78% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 60543?
The 2020 Census counted 40,299 people in 60543; the ACS, which samples households over 2020-2024, estimates 43,047. Between the 2010 and 2020 censuses its population grew 11.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 43,047
- 2020 Census count
- 40,299+11.5% since 2010 (36,156)
- Households
- 14,469
- Median age
- 39.0
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 60543?
Of the 43,047 people the ACS estimates in 60543, 25.9% are under 18 and 11.7% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (63.0%), then Hispanic or Latino (19.4%).
- Under 1825.9%
- 18 to 6462.4%
- 65 and older11.7%
- White, not Hispanic63.0%
- Hispanic or Latino19.4%
- Black, not Hispanic8.6%
- Other or two or more5.0%
- Asian, not Hispanic4.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 60543 earn?
Median household income is $119,371 (ACS 2020-2024), the 6th highest of the 14 ranked ZIP codes in Kendall County. It is not measurably different from 2015-2019 ($125,207 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $119,371
- Income per person
- $47,177
- Below the poverty line
- 3.1%
- Unemployed (of the labor force)
- 3.0%
- Adults 25+ with a bachelor's degree
- 42.7%
- Adjusted gross income per tax return, 2022
- $94,99819,920 returns; wages 79% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 60543?
FHFA's house price index for 60543, built from repeat sales and appraisals of the same homes, rose 83% from 2015 to 2025 and rose 54% from 2020 to 2025, and moved +5.7% in 2025.
- Median home value (owners' estimate)
- $343,800
- Median gross rent
- $1,616
- Homes owned by their occupants
- 86.6%
- Housing units
- 14,666
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 60543?
956 business establishments had a location in this ZIP code in 2023, 76 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction143
- Health care and social assistance110
- Retail trade101
- Other services (except public administration)100
- Professional, scientific, and technical services88
- Transportation and warehousing80
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 60543?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 60538 | Montgomery | 30,514 | $97k | 4.2 mi |
| 60503 | Aurora | 16,789 | $137k | 4.3 mi |
| 60585 | Plainfield | 25,960 | $156k | 5.1 mi |
| 60512 | Bristol | 1,090 | $97k | 6.5 mi |
| 60544 | Plainfield | 27,306 | $108k | 6.6 mi |
| 60560 | Yorkville | 28,795 | $110k | 7.0 mi |
| 60504 | Aurora | 39,358 | $98k | 6.8 mi (near) |
| 60506 | Aurora | 50,038 | $80k | 6.8 mi (near) |
| 60505 | Aurora | 57,199 | $73k | 6.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.