Residential delivery area · Illinois
ZIP Code 60548: Sandwich, IL
ZIP code 60548 uses the postal name Sandwich, Illinois and lies mostly in DeKalb County (54% of its land), reaching into LaSalle County and Kendall County (Census 2020 ZIP-county file). About 12,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $82,957 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Sandwich (11%) and Lake Holiday (5%), and under 1% in smaller places; 83% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Sandwich · its only residential ZIP
- County
- DeKalb County (54%); LaSalle County (34%); Kendall County (12%)
- Census places
- Sandwich (11%); Lake Holiday (5%) census-designated place
- Metro area
- Chicago-Naperville-Elgin, IL-IN
- House district
- IL-14 119th Congress
- State
- Illinois
- Time zone
- Central
- Land area
- 41.4 sq mi · 283 people per sq mi
Where is ZIP code 60548?
60548 centers on 41.649°, -88.635° and covers 41.4 square miles of land plus 0.4 of water. It borders 7 ZIP codes: 60552, 60545, 60531, 60511, 60551, 60520, 60541.
The map draws ZIP code areas only. For the streets inside 60548, 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 60548 compare with the rest of DeKalb County?
| Measure | 60548 | In DeKalb County | In IL |
|---|---|---|---|
| People (ACS 2020-2024) | 11,721 | 6th of 22 | 336th of 1,396 |
| Median household income | $83k | 11th of 16 | 361st of 797 |
| Median home value | $262k | 8th of 18 | 241st of 842 |
Its median household income is higher than in 65% of U.S. residential ZIP codes, and it is denser than 66% 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 60548?
The 2020 Census counted 12,019 people in 60548; the ACS, which samples households over 2020-2024, estimates 11,721. Between the 2010 and 2020 censuses its population fell 1.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 11,721
- 2020 Census count
- 12,019−1.6% since 2010 (12,218)
- Households
- 4,548
- Median age
- 40.8
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 60548?
Of the 11,721 people the ACS estimates in 60548, 24.4% are under 18 and 21.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (83.2%).
- Under 1824.4%
- 18 to 6454.1%
- 65 and older21.5%
- White, not Hispanic83.2%
- Hispanic or Latino9.2%
- Other or two or more6.3%
- Asian, not Hispanic1.0%
- Black, not Hispanic0.2%
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 60548 earn?
Median household income is $82,957 (ACS 2020-2024), the 11th highest of the 16 ranked ZIP codes in DeKalb County. It is not measurably different from 2015-2019 ($86,109 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $82,957
- Income per person
- $39,818
- Below the poverty line
- 7.2%
- Unemployed (of the labor force)
- 2.6%
- Adults 25+ with a bachelor's degree
- 21.6%
- Adjusted gross income per tax return, 2022
- $71,9845,900 returns; wages 73% 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 60548?
FHFA's house price index for 60548, built from repeat sales and appraisals of the same homes, rose 94% from 2015 to 2025 and rose 57% from 2020 to 2025, and moved +5.0% in 2025.
- Median home value (owners' estimate)
- $262,100
- Median gross rent
- $1,045
- Homes owned by their occupants
- 82.1%
- Housing units
- 4,842
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 60548?
244 business establishments had a location in this ZIP code in 2023, 6 fewer than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction37
- Health care and social assistance35
- Retail trade28
- Other services (except public administration)26
- Accommodation and food services25
- Manufacturing19
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 60548?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 60552 | Somonauk | 4,285 | $113k | 3.9 mi |
| 60545 | Plano | 14,392 | $87k | 5.5 mi |
| 60531 | Leland | 1,885 | $80k | 8.1 mi |
| 60511 | Big Rock | 2,081 | $159k | 8.7 mi |
| 60551 | Sheridan | 5,058 | $87k | 9.0 mi |
| 60520 | Hinckley | 2,979 | $99k | 9.7 mi |
| 60541 | Newark | 3,342 | $118k | 10.7 mi |
| 60536 | Millbrook | 62 | $116k | 5.5 mi (near) |
| 60537 | Millington | 726 | $82k | 6.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.