Residential delivery area · Illinois
ZIP Code 61030: Forreston, IL
ZIP code 61030 uses the postal name Forreston, Illinois and lies entirely in Ogle County (Census 2020 ZIP-county file). About 2,200 people live there (Census Bureau, ACS 2020-2024). Median household income is $71,655 (Census Bureau, ACS 2020-2024). By Census place, 2% of its land lies in Forreston; 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Forreston · its only residential ZIP
- County
- Ogle County
- Census places
- Forreston
- Micro area
- Rochelle, IL
- House district
- IL-16 119th Congress
- State
- Illinois
- Time zone
- Central
- Land area
- 60.9 sq mi · 36 people per sq mi
Where is ZIP code 61030?
61030 centers on 42.120°, -89.592° and covers 60.9 square miles of land plus 0.0 of water. It borders 7 ZIP codes: 61007, 61078, 61054, 61039, 61064, 61047, 61046.
The map draws ZIP code areas only. For the streets inside 61030, 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 61030 compare with the rest of Ogle County?
| Measure | 61030 | In Ogle County | In IL |
|---|---|---|---|
| People (ACS 2020-2024) | 2,194 | 12th of 26 | 641st of 1,396 |
| Median household income | $72k | 13th of 17 | 492nd of 797 |
| Median home value | $157k | 8th of 16 | 520th of 842 |
Its median household income is higher than in 49% of U.S. residential ZIP codes, and it is denser than 36% 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 61030?
The 2020 Census counted 2,077 people in 61030; the ACS, which samples households over 2020-2024, estimates 2,194. Between the 2010 and 2020 censuses its population fell 5.8% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 2,194±335 (90% margin)
- 2020 Census count
- 2,077−5.8% since 2010 (2,205)
- Households
- 857
- Median age
- 38.0
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 61030?
Of the 2,194 people the ACS estimates in 61030, 23.8% are under 18 and 16.8% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (87.9%).
- Under 1823.8%
- 18 to 6459.3%
- 65 and older16.8%
- White, not Hispanic87.9%
- Other or two or more5.9%
- Hispanic or Latino5.1%
- Black, not Hispanic1.1%
- 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 61030 earn?
Median household income is $71,655 (ACS 2020-2024), the 13th highest of the 17 ranked ZIP codes in Ogle County. It is not measurably different from 2015-2019 ($69,839 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $71,655±$12,680
- Income per person
- $31,946
- Below the poverty line
- 4.1%
- Unemployed (of the labor force)
- 4.8%
- Adults 25+ with a bachelor's degree
- 18.4%
- Adjusted gross income per tax return, 2022
- $70,1461,000 returns; wages 64% 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 61030?
FHFA's house price index for 61030, built from repeat sales and appraisals of the same homes, rose 64% from 2015 to 2025 and rose 43% from 2020 to 2025, and moved −8.7% in 2025.
- Median home value (owners' estimate)
- $157,200
- Median gross rent
- $731
- Homes owned by their occupants
- 82.7%
- Housing units
- 914
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 61030?
52 business establishments had a location in this ZIP code in 2023, the same count as in 2018; the most are in other services (except public administration) (ZIP Code Business Patterns).
- Other services (except public administration)13
- Transportation and warehousing7
- Retail trade6
- Manufacturing5
- Accommodation and food services5
- Construction4
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 61030?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 61007 | Baileyville | 196 | – | 5.5 mi |
| 61078 | Shannon | 1,459 | $76k | 7.8 mi |
| 61054 | Mount Morris | 3,610 | $48k | 8.7 mi |
| 61039 | German Valley | 824 | $84k | 8.7 mi |
| 61064 | Polo | 3,757 | $75k | 9.0 mi |
| 61047 | Leaf River | 1,622 | $86k | 10.3 mi |
| 61046 | Lanark | 2,794 | $79k | 11.4 mi |
| 61051 | Milledgeville | 1,469 | $60k | 12.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.