Residential delivery area · Illinois
ZIP Code 61021: Dixon, IL
ZIP code 61021 uses the postal name Dixon, Illinois and lies mostly in Lee County (90% of its land) with the rest in Ogle County (Census 2020 ZIP-county file). About 22,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $69,127 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Dixon (5%), Lost Nation (2%), Grand Detour (under 1%) and Nelson (under 1%), and 2% in smaller places; 91% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Dixon · its only residential ZIP
- County
- Lee County (90%); Ogle County (10%)
- Census places
- Dixon (5%); Lost Nation (2%) census-designated place; Grand Detour (under 1%) census-designated place; Nelson (under 1%)
- Micro area
- Dixon, IL
- House district
- IL-16 119th Congress
- State
- Illinois
- Time zone
- Central
- Land area
- 150.1 sq mi · 149 people per sq mi
Where is ZIP code 61021?
61021 centers on 41.830°, -89.477° and covers 150.1 square miles of land plus 3.3 of water. It borders 10 ZIP codes: 61057, 61324, 61091, 61031, 61042, 61310, 61064, 61061, 61071, 61081.
The map draws ZIP code areas only. For the streets inside 61021, 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 61021 compare with the rest of Lee County?
| Measure | 61021 | In Lee County | In IL |
|---|---|---|---|
| People (ACS 2020-2024) | 22,308 | 1st of 24 | 219th of 1,396 |
| Median household income | $69k | 8th of 13 | 526th of 797 |
| Median home value | $149k | 8th of 14 | 560th of 842 |
Its median household income is higher than in 45% of U.S. residential ZIP codes, and it is denser than 59% 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 61021?
The 2020 Census counted 22,984 people in 61021; the ACS, which samples households over 2020-2024, estimates 22,308. Between the 2010 and 2020 censuses its population fell 3.2% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 22,308
- 2020 Census count
- 22,984−3.2% since 2010 (23,745)
- Households
- 8,838
- Median age
- 43.4
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 61021?
Of the 22,308 people the ACS estimates in 61021, 18.6% are under 18 and 21.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (80.6%).
- Under 1818.6%
- 18 to 6459.5%
- 65 and older21.9%
- White, not Hispanic80.6%
- Hispanic or Latino8.2%
- Black, not Hispanic7.5%
- Other or two or more2.7%
- Asian, not Hispanic0.9%
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 61021 earn?
Median household income is $69,127 (ACS 2020-2024), the 8th highest of the 13 ranked ZIP codes in Lee County. It is not measurably different from 2015-2019 ($73,784 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $69,127
- Income per person
- $35,761
- Below the poverty line
- 13.7%
- Unemployed (of the labor force)
- 5.1%
- Adults 25+ with a bachelor's degree
- 21.1%
- Adjusted gross income per tax return, 2022
- $71,54010,380 returns; wages 63% 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 61021?
FHFA's house price index for 61021, built from repeat sales and appraisals of the same homes, rose 70% from 2015 to 2025 and rose 53% from 2020 to 2025, and moved +10.2% in 2025.
- Median home value (owners' estimate)
- $148,500
- Median gross rent
- $879
- Homes owned by their occupants
- 72.8%
- Housing units
- 10,010
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 61021?
493 business establishments had a location in this ZIP code in 2023, 9 fewer than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade70
- Health care and social assistance70
- Other services (except public administration)61
- Accommodation and food services60
- Construction50
- Finance and insurance37
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 61021?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 61057 | Nachusa | 30 | – | 4.8 mi |
| 61324 | Eldena | 97 | – | 5.3 mi |
| 61091 | Woosung | 248 | – | 6.7 mi |
| 61031 | Franklin Grove | 1,492 | $75k | 8.0 mi |
| 61042 | Harmon | 404 | $71k | 10.3 mi |
| 61310 | Amboy | 3,347 | $70k | 10.8 mi |
| 61064 | Polo | 3,757 | $75k | 12.4 mi |
| 61061 | Oregon | 6,766 | $88k | 13.6 mi |
| 61071 | Rock Falls | 13,581 | $61k | 13.5 mi |
| 61081 | Sterling | 20,844 | $68k | 13.6 mi |
| 61331 | Lee Center | 0 | – | 11.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.