Stephenson County, IL ZIP codes
Stephenson County ZIP codes by town
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Stephenson County ZIP codes
The ZIP codes of Stephenson County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Stephenson County in numbers
About 43,768 people live in Stephenson County, in 19,358 households, the 33rd most populous of Illinois's 102 counties. The median household income is $64,043 a year, 23% below the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $134,900 (49% below the Illinois median), and median gross rent is $798 a month. The median age is 45.3; 20.7% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 21 minutes.
| Population | 43,768 |
|---|---|
| Households | 19,358 |
| Median age | 45.3 |
| Median household income | $64,043 |
| Median home value | $134,900 |
| Median gross rent | $798 |
| Bachelor's degree or higher | 20.7% |
| Mean commute | 20.7 min |
| Population density | 78 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Stephenson County
| Town | ZIP codes | Population |
|---|---|---|
| Freeport | 1 | 23,505 |
| Lena | 1 | 2,761 |
| Orangeville | 1 | 1,045 |
| Pearl City | 1 | 745 |
| Cedarville | 1 | 690 |
| Dakota | 1 | 645 |
| Davis | 1 | 535 |
| German Valley | 1 | 467 |
| Rock City | 1 | 441 |
| Winslow | 1 | 338 |
| Kent | 1 | 225 |
| Mc Connell | 1 | 199 |
| Ridott | 1 | 130 |
| Eleroy | 1 | 33 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Stephenson County.
Not sure you are in Stephenson County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Stephenson County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
61013 | Cedarville , IL | Standard | 690 | $67,569 | $125,700 |
61018 | Dakota , IL | Standard | 1,034 | $76,471 | $157,800 |
61019 | Davis , IL | Standard | 3,461 | $105,150 | $232,100 |
61027 | Eleroy , IL | Standard | 33 | — | — |
61032 | Freeport , IL | Standard | 29,020 | $56,593 | $112,300 |
61039 | German Valley , IL | Standard | 824 | $84,107 | $181,300 |
61044 | Kent , IL | Standard | 225 | $82,083 | $150,000 |
61048 | Lena , IL | Standard | 3,786 | $82,875 | $166,600 |
61050 | Mc Connell , IL | Standard | 199 | $74,728 | $124,400 |
61060 | Orangeville , IL | Standard | 1,554 | $76,726 | $161,000 |
61062 | Pearl City , IL | Standard | 1,840 | $66,667 | $196,900 |
61067 | Ridott , IL | Standard | 450 | $66,563 | $170,500 |
61070 | Rock City , IL | Standard | 1,322 | $84,167 | $157,000 |
61089 | Winslow , IL | Standard | 526 | $66,250 | $115,900 |
Cite this page
zipcodes.pro. “Stephenson County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/il/county/stephenson
Underlying data is public domain or openly licensed — sources, vintages and licences.