Residential delivery area · Illinois
ZIP Code 61734: Delavan, IL
ZIP code 61734 uses the postal name Delavan, Illinois and lies entirely in Tazewell County (Census 2020 ZIP-county file). About 2,400 people live there (Census Bureau, ACS 2020-2024). Median household income is $71,435 (Census Bureau, ACS 2020-2024). By Census place, 2% of its land lies in Delavan; 98% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2024
- ZBP2023
- IRS2022
- Town
- Delavan · its only residential ZIP
- County
- Tazewell County
- Census places
- Delavan
- Metro area
- Peoria, IL
- House district
- IL-17 119th Congress
- State
- Illinois
- Time zone
- Central
- Land area
- 76.5 sq mi · 32 people per sq mi
Where is ZIP code 61734?
61734 centers on 40.376°, -89.526° and covers 76.5 square miles of land plus 0.0 of water. It borders 6 ZIP codes: 61747, 62635, 62682, 61534, 61568, 61721.
The map draws ZIP code areas only. For the streets inside 61734, 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 61734 compare with the rest of Tazewell County?
| Measure | 61734 | In Tazewell County | In IL |
|---|---|---|---|
| People (ACS 2020-2024) | 2,443 | 10th of 21 | 619th of 1,396 |
| Median household income | $71k | 11th of 14 | 495th of 797 |
| Median home value | $153k | 12th of 15 | 547th of 842 |
Its median household income is higher than in 49% of U.S. residential ZIP codes, and it is denser than 34% 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 61734?
The 2020 Census counted 2,597 people in 61734; the ACS, which samples households over 2020-2024, estimates 2,443. Between the 2010 and 2020 censuses its population fell 9.4% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 2,443±372 (90% margin)
- 2020 Census count
- 2,597−9.4% since 2010 (2,867)
- Households
- 1,001
- Median age
- 42.8
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 61734?
Of the 2,443 people the ACS estimates in 61734, 24.7% are under 18 and 24.4% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (94.5%).
- Under 1824.7%
- 18 to 6450.9%
- 65 and older24.4%
- White, not Hispanic94.5%
- Hispanic or Latino3.0%
- Other or two or more2.5%
- Black, not Hispanic0.0%
- Asian, not Hispanic0.0%
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 61734 earn?
Median household income is $71,435 (ACS 2020-2024), the 11th highest of the 14 ranked ZIP codes in Tazewell County. It is not measurably different from 2015-2019 ($72,734 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $71,435±$7,325
- Income per person
- $33,994
- Below the poverty line
- 10.5%
- Unemployed (of the labor force)
- 4.4%
- Adults 25+ with a bachelor's degree
- 22.4%
- Adjusted gross income per tax return, 2022
- $73,0871,210 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 61734?
- Median home value (owners' estimate)
- $152,700
- Median gross rent
- $874
- Homes owned by their occupants
- 78.7%
- Housing units
- 1,126
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 61734?
34 business establishments had a location in this ZIP code in 2023, 2 fewer than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction6
- Retail trade5
- Other services (except public administration)5
- Transportation and warehousing3
- Administrative and support and waste management and remediation services3
- Health care and social assistance3
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 61734?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 61747 | Hopedale | 1,441 | $80k | 5.5 mi |
| 62635 | Emden | 661 | $78k | 6.4 mi |
| 62682 | San Jose | 684 | $60k | 7.7 mi |
| 61534 | Green Valley | 1,725 | $90k | 7.8 mi |
| 61568 | Tremont | 4,483 | $101k | 9.5 mi |
| 61721 | Armington | 552 | $92k | 10.8 mi |
| 62643 | Hartsburg | 797 | $76k | 10.0 mi (near) |
| 61759 | Minier | 1,359 | $92k | 10.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.