61231 ZIP Code, Aledo, IL
61231 is a ZIP code in Aledo, Illinois in Mercer County. It covers 153 square miles of land. The closest ZIP codes are 61263, 61486 and 61279. 4,962 people live here in 2,128 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (72%). Median household income is $70,991, below the Illinois median of $83,390.
Quick facts
- Mailing city: Aledo, IL
- County: Mercer County
- Land area: 153 sq mi
- Population: 4,962
- Median household income: $70,991
Key figures
| Measure | Value |
|---|---|
| Residents | 4,962 |
| Households | 2,128 |
| Median household income | $70,991 |
| Income per person | $35,849 |
| Median age | 42.2 |
| Homeowners | 72.2% |
| Median home value | $147,600 |
| Median rent | $815 |
| Bachelor's degree or higher | 25.3% |
| Average commute (minutes) | 21.3 |
| Households with kids under 18 | 29.4% |
| Moved in the past year | 6.2% |
| Below the poverty line | 11.5% |
| Broadband internet | 91.2% |
| Speak a non-English language at home | 3.0% |
Household income
| % of households | Value |
|---|---|
| <$10K | 4.8% |
| $10–15K | 4.7% |
| $15–25K | 7.7% |
| $25–35K | 6.2% |
| $35–50K | 13.2% |
| $50–75K | 18.2% |
| $75–100K | 10.4% |
| $100–150K | 18.0% |
| $150–200K | 11.8% |
| $200K+ | 4.8% |
Age
| % of all residents | Value |
|---|---|
| <10 | 11.7% |
| 10–19 | 10.9% |
| 20–24 | 5.0% |
| 25–34 | 13.8% |
| 35–44 | 12.3% |
| 45–54 | 11.5% |
| 55–64 | 12.6% |
| 65–74 | 12.2% |
| 75+ | 10.0% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 39.0% |
| Owned outright | 27.3% |
| Rented | 25.6% |
| Vacant | 8.2% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 80.8% |
| Townhome | 2.2% |
| 2–4 units | 6.9% |
| 5–19 units | 5.6% |
| 20+ units | 3.8% |
| Mobile / other | 0.8% |
Businesses in 61231
156 business establishments with 1,696 employees (ZIP Codes Business Patterns 2023).
- Other Services (except Public Administration): 24
- Health Care and Social Assistance: 19
- Retail Trade: 17
- Construction: 15
- Finance and Insurance: 14
- Accommodation and Food Services: 13
- Professional, Scientific, and Technical Services: 11
- Administrative and Support and Waste Management and Remediation Services: 9
EDDM carrier routes
See every USPS carrier route in 61231 with residential and business mailbox counts on the route map. Open the EDDM route map.
Nearby ZIP codes
- 61263 — Matherville village, IL (7.4 mi)
- 61486 — Viola village, IL (7.4 mi)
- 61279 — Buffalo Prairie CDP, IL (8 mi)
- 61260 — Joy village, IL (9 mi)
- 61476 — Seaton village, IL (10.2 mi)
- 61276 — Preemption CDP, IL (10.4 mi)
- 61412 — Alexis village, IL (11.6 mi)
- 61237 — Buffalo Prairie CDP, IL (11.8 mi)
Areas that include 61231
- Aledo, IL ZIP codes — 1 ZIP code
- Millersburg, IL ZIP codes — 2 ZIP codes
- Mercer County ZIP codes — 13 ZIP codes
- Illinois ZIP code data
Where it ranks
- No. 5 of 7: highest median household income in Mercer County
- No. 3 of 7: highest median home value in Mercer County
- No. 5 of 7: highest share of households with children in Mercer County
- No. 3 of 7: lowest median age in Mercer County
- No. 5 of 7: highest median age in Mercer County
- No. 5 of 6: fastest population growth in Mercer County
Mail every home in 61231
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 61231, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 61231 in?
- 61231 is a Aledo, IL mailing address. By land area, 2% lies inside Aledo; the rest is outside any Census-defined city or community.
- What county is 61231 in?
- 61231 is in Mercer County.
- What is the population of 61231?
- About 4,962 people (±238), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 5,291.
- What is the median household income in 61231?
- $70,991 (±$8,292), compared with $83,390 for Illinois as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 61231?
- EDDM2GO's stored route library does not include 61231 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
- What ZIP codes are near 61231?
- The closest, measured center to center: 61263 (7.4 mi, Matherville), 61486 (7.4 mi, Viola), 61279 (8 mi, Buffalo Prairie), 61260 (9 mi, Joy), 61476 (10.2 mi, Seaton) and 61276 (10.4 mi, Preemption).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.