Residential delivery area · Illinois
ZIP Code 61603: Peoria, IL
ZIP code 61603 is in Peoria, Illinois, entirely in Peoria County (Census 2020 ZIP-county file). About 15,000 people live there (Census Bureau, ACS 2020-2024), the 4th most populous of Peoria's 9 residential ZIP codes. Median household income is $41,618 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Peoria · 9 residential ZIPs
- County
- Peoria County
- Census places
- Peoria
- Metro area
- Peoria, IL
- House district
- IL-17 119th Congress
- State
- Illinois
- Time zone
- Central
- Land area
- 4.2 sq mi · 3,635 people per sq mi
- PO Box ZIPs
- 20 more ZIP codes use the name Peoria for PO boxes or single organizations
Where is ZIP code 61603?
61603 centers on 40.710°, -89.575° and covers 4.2 square miles of land plus 1.0 of water. It borders 6 ZIP codes: 61606, 61611, 61616, 61602, 61614, 61604.
The map draws ZIP code areas only. For the streets inside 61603, 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 61603 compare with the rest of Peoria?
| Measure | 61603 | In Peoria | In Peoria County | In IL |
|---|---|---|---|---|
| People (ACS 2020-2024) | 15,356 | 4th of 9 | 4th of 28 | 283rd of 1,396 |
| Median household income | $42k | 5th of 7 | 16th of 18 | 777th of 797 |
| Median home value | $78k | 7th of 8 | 18th of 19 | 825th of 842 |
Its median household income is higher than in 7% of U.S. residential ZIP codes, and it is denser than 91% 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 61603?
The 2020 Census counted 15,503 people in 61603; the ACS, which samples households over 2020-2024, estimates 15,356. Between the 2010 and 2020 censuses its population fell 11.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 15,356
- 2020 Census count
- 15,503−11.9% since 2010 (17,600)
- Households
- 6,674
- Median age
- 34.1
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 61603?
Of the 15,356 people the ACS estimates in 61603, 28.8% are under 18 and 13.9% are 65 or older. The largest group by race and Hispanic origin is Black (not Hispanic) (38.6%), then White (not Hispanic) (32.5%).
- Under 1828.8%
- 18 to 6457.3%
- 65 and older13.9%
- Black, not Hispanic38.6%
- White, not Hispanic32.5%
- Other or two or more13.8%
- Hispanic or Latino13.6%
- Asian, not Hispanic1.5%
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 61603 earn?
Median household income is $41,618 (ACS 2020-2024), the 16th highest of the 18 ranked ZIP codes in Peoria County. It is not measurably different from 2015-2019 ($39,826 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $41,618±$5,003
- Income per person
- $23,175
- Below the poverty line
- 30.2%
- Unemployed (of the labor force)
- 13.5%
- Adults 25+ with a bachelor's degree
- 14.7%
- Adjusted gross income per tax return, 2022
- $38,4466,400 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 61603?
FHFA's house price index for 61603, built from repeat sales and appraisals of the same homes, rose 42% from 2015 to 2025 and rose 47% from 2020 to 2025, and moved −1.6% in 2025.
- Median home value (owners' estimate)
- $77,500
- Median gross rent
- $995
- Homes owned by their occupants
- 52.9%
- Housing units
- 8,088
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 61603?
272 business establishments had a location in this ZIP code in 2023, 19 fewer than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade40
- Health care and social assistance40
- Other services (except public administration)39
- Accommodation and food services26
- Real estate and rental and leasing21
- Construction19
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 61603?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 61606 | Peoria | 6,684 | $39k | 2.0 mi |
| 61611 | East Peoria | 24,040 | $79k | 2.1 mi |
| 61616 | Peoria Heights | 5,825 | $60k | 2.6 mi |
| 61602 | Peoria | 1,163 | $34k | 2.6 mi |
| 61614 | Peoria | 27,370 | $67k | 3.7 mi |
| 61604 | Peoria | 28,313 | $52k | 4.1 mi |
| 61625 | Peoria | 456 | – | 2.2 mi (near) |
| 61605 | Peoria | 13,424 | $26k | 3.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.