ZIP code 61081
Where is ZIP code 61081?
Sterling, Illinois
Whiteside County · Standard ZIP code
ZIP code 61081 belongs to Sterling, Illinois in Whiteside County. 61081 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Central Time zone and uses area codes 779 and 815. About 20,844 people live in the 61081 area, where the median household income is $67,586. The closest ZIP codes are 61071 (Rock Falls, 2.8 mi south), 61037 (Galt, 3.2 mi southwest) and 61042 (Harmon, 10.2 mi southeast).
| ZIP code | 61081 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Sterling |
| Also accepted | Coleta |
| State | Illinois (IL) |
| County | Whiteside County |
| Time zone | Central Time · now |
| Area codes | 779, 815 |
| Coordinates | 41.8055, -89.7054 map |
| 3-digit prefix | 610 |
Population and income in 61081
| Population | 20,844 · higher than 84% of Illinois ZIP codes |
|---|---|
| People per square mile | 168 · higher than 62% of Illinois ZIP codes |
| Median age | 43.3 years · higher than 58% of Illinois ZIP codes |
| Men / women | 49% / 51% |
| Median household income | $67,586 · lower than 62% of Illinois ZIP codes |
| Income per person | $38,370 |
| Below the poverty line | 12% |
| Bachelor’s degree or higher | 22% of adults 25+ |
| Median home value | $123,400 · lower than 65% of Illinois ZIP codes |
| Median rent | $870 a month |
| Housing units | 9,829 |
| Households | 8,884 (2.3 people on average) |
| Owners / renters | 73% / 27% |
| Land area | 124.39 sq mi (plus 2.12 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 61081. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 61081
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 61071 | Rock Falls, IL | 2.8 mi S | Standard |
| 61037 | Galt, IL | 3.2 mi SW | PO Box only |
| 61042 | Harmon, IL | 10.2 mi SE | Standard |
| 61091 | Woosung, IL | 10.8 mi NE | PO Box only |
| 61021 | Dixon, IL | 11.5 mi E | Standard |
| 61283 | Tampico, IL | 11.6 mi SW | Standard |
| 61051 | Milledgeville, IL | 11.8 mi N | Standard |
| 61243 | Deer Grove, IL | 12 mi S | Standard |
| 61261 | Lyndon, IL | 12.4 mi SW | Standard |
| 61270 | Morrison, IL | 13.6 mi W | Standard |
| 61064 | Polo, IL | 13.8 mi NE | Standard |
| 61324 | Eldena, IL | 15.3 mi E | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 61081 or measure the distance to another ZIP code.
How to address mail to 61081
123 MAIN ST
STERLING IL 61081
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts COLETA as the city name for 61081. Adding the 4-digit ZIP+4 code (61081-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 61081?
- 61081 is a Sterling, Illinois ZIP code. Coleta is also accepted as the city name.
- What county is 61081 in?
- ZIP code 61081 is in Whiteside County, Illinois.
- What time zone is ZIP code 61081 in?
- 61081 is in the Central Time zone (America/Chicago).
- What area code is 61081?
- Phone numbers in ZIP code 61081 use area codes 779 and 815.
- What is the population of ZIP code 61081?
- About 20,844 people live in ZIP code 61081, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 61081?
- The median household income in 61081 is $67,586 a year, lower than 62% of Illinois ZIP codes.
- What ZIP codes are near 61081?
- The nearest ZIP codes to 61081 are 61071 (Rock Falls, 2.8 miles), 61037 (Galt, 3.2 miles), 61042 (Harmon, 10.2 miles) and 61091 (Woosung, 10.8 miles).