Residential delivery area · Illinois
ZIP Code 61048: Lena, IL
ZIP code 61048 uses the postal name Lena, Illinois and lies mostly in Stephenson County (91% of its land) with the rest in Jo Daviess County (Census 2020 ZIP-county file). About 3,800 people live there (Census Bureau, ACS 2020-2024). Median household income is $82,875 (Census Bureau, ACS 2020-2024). By Census place, 3% of its land lies in Lena; 97% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Lena · its only residential ZIP
- County
- Stephenson County (91%); Jo Daviess County (9%)
- Census places
- Lena
- Micro area
- Freeport, IL
- House districts
- IL-16 (64%), IL-17 (36%) 119th Congress, by share of land
- State
- Illinois
- Time zone
- Central
- Land area
- 81.8 sq mi · 46 people per sq mi
Where is ZIP code 61048?
61048 centers on 42.383°, -89.841° and covers 81.8 square miles of land plus 0.1 of water. It borders 9 ZIP codes: 61044, 61027, 61089, 61050, 61059, 61062, 61085, 61087, 61032.
The map draws ZIP code areas only. For the streets inside 61048, 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 61048 compare with the rest of Stephenson County?
| Measure | 61048 | In Stephenson County | In IL |
|---|---|---|---|
| People (ACS 2020-2024) | 3,786 | 3rd of 19 | 528th of 1,396 |
| Median household income | $83k | 5th of 11 | 362nd of 797 |
| Median home value | $167k | 4th of 10 | 477th of 842 |
Its median household income is higher than in 65% of U.S. residential ZIP codes, and it is denser than 41% 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 61048?
The 2020 Census counted 4,081 people in 61048; the ACS, which samples households over 2020-2024, estimates 3,786. Between the 2010 and 2020 censuses its population fell 6.4% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 3,786
- 2020 Census count
- 4,081−6.4% since 2010 (4,360)
- Households
- 1,641
- Median age
- 47.2
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 61048?
Of the 3,786 people the ACS estimates in 61048, 22.9% are under 18 and 25.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (95.5%).
- Under 1822.9%
- 18 to 6451.8%
- 65 and older25.3%
- White, not Hispanic95.5%
- Other or two or more2.8%
- Hispanic or Latino1.3%
- Black, not Hispanic0.3%
- 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 61048 earn?
Median household income is $82,875 (ACS 2020-2024), the 5th highest of the 11 ranked ZIP codes in Stephenson County. It rose from $69,385 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $82,875±$11,617
- Income per person
- $42,107
- Below the poverty line
- 3.0%
- Unemployed (of the labor force)
- 2.3%
- Adults 25+ with a bachelor's degree
- 24.1%
- Adjusted gross income per tax return, 2022
- $78,6562,040 returns; wages 59% 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 61048?
FHFA's house price index for 61048, built from repeat sales and appraisals of the same homes, rose 81% from 2015 to 2025 and rose 47% from 2020 to 2025, and moved +10.7% in 2025.
- Median home value (owners' estimate)
- $166,600
- Median gross rent
- $664
- Homes owned by their occupants
- 82.8%
- Housing units
- 1,768
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 61048?
132 business establishments had a location in this ZIP code in 2023, 6 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction17
- Retail trade17
- Other services (except public administration)14
- Transportation and warehousing13
- Manufacturing11
- Professional, scientific, and technical services9
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 61048?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 61044 | Kent | 225 | $82k | 5.4 mi |
| 61027 | Eleroy | 33 | – | 5.5 mi |
| 61089 | Winslow | 526 | $66k | 6.3 mi |
| 61050 | McConnell | 199 | $75k | 6.8 mi |
| 61059 | Nora | 178 | $54k | 7.1 mi |
| 61062 | Pearl City | 1,840 | $67k | 9.1 mi |
| 61085 | Stockton | 3,149 | $60k | 10.1 mi |
| 61087 | Warren | 1,588 | $77k | 10.3 mi |
| 61032 | Freeport | 29,020 | $57k | 11.3 mi |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.