What city is 61080 in?

61080 is a South Beloit, IL mailing address. By land area, 23% lies inside South Beloit and 3% lies inside Roscoe; the rest is outside any Census-defined city or community.

What is the population of 61080?

About 10,955 people (±482), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 11,252.

What is the median household income in 61080?

$76,579 (±$12,646), 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 61080?

8 USPS carrier routes with 4,431 residential and 245 business mailboxes (4,678 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 61080?

The closest, measured center to center: 61073 (4 mi, Roscoe), 61011 (7.6 mi, Loves Park), 53511 (7.7 mi, Beloit), 53525 (8.2 mi, Clinton), 61072 (8.3 mi, Rockton) and 61115 (8.4 mi, Machesney Park).

61080 ZIP Code, South Beloit, IL

Q: What county is 61080 in?

61080 is mostly in Winnebago County (71% of its land), with smaller parts in Boone County.

61080 is a ZIP code in South Beloit, Illinois — mostly in Winnebago County (71% of its land), with smaller parts in Boone County. It covers 25 square miles of land. The closest ZIP codes are 61073, 61011 and 53511. 10,955 people live here in 4,716 households. With about 437 people per square mile it is lightly settled, and most homes are owner-occupied (73%). Median household income is $76,579, close to the Illinois median of $83,390.

Quick facts

Mailing city: South Beloit, IL
County: Winnebago County
Land area: 25 sq mi
Population: 10,955
Median household income: $76,579
Carrier routes: 8 (4,431 homes)

Key figures

Measure	Value
Residents	10,955
Households	4,716
Median household income	$76,579
Income per person	$40,181
Median age	38.7
Homeowners	72.9%
Median home value	$181,200
Median rent	$942
Bachelor's degree or higher	27.1%
Average commute (minutes)	24.6
Households with kids under 18	27.4%
Moved in the past year	12.4%
Below the poverty line	10.6%
Broadband internet	91.9%
Speak a non-English language at home	11.0%

Household income

% of households	Value
<$10K	1.9%
$10–15K	4.5%
$15–25K	6.6%
$25–35K	9.1%
$35–50K	12.7%
$50–75K	13.8%
$75–100K	14.7%
$100–150K	21.6%
$150–200K	8.5%
$200K+	6.5%

Age

% of all residents	Value
<10	13.6%
10–19	12.0%
20–24	3.6%
25–34	15.0%
35–44	15.1%
45–54	11.4%
55–64	13.2%
65–74	9.6%
75+	6.6%

Tenure

% of housing units	Value
Owned, with mortgage	37.1%
Owned outright	31.4%
Rented	25.2%
Vacant	6.4%

Type of building

% of housing units	Value
Detached house	74.4%
Townhome	3.6%
2–4 units	4.5%
5–19 units	7.9%
20+ units	2.5%
Mobile / other	7.1%

Businesses in 61080

219 business establishments with 2,964 employees (ZIP Codes Business Patterns 2023).

Manufacturing: 41
Retail Trade: 32
Accommodation and Food Services: 30
Construction: 28
Other Services (except Public Administration): 23
Administrative and Support and Waste Management and Remediation Services: 13
Wholesale Trade: 10
Health Care and Social Assistance: 10

EDDM carrier routes

61080 has 8 USPS carrier routes with 4,431 residential and 245 business mailboxes. Open the EDDM route map.

Carrier routes in 61080

61080 has 8 USPS carrier routes (4 city (C), 4 rural (R)) with 4,431 residential and 245 business mailboxes. Routes range from 196 homes (C004) to 795 homes (C001); the median route has 606 homes. The Census counted 4,716 households in 61080 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	1
250–499	2
500–749	4
750–999	1
1,000–1,499	0
1,500+	0

Best routes in 61080 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

Route C003 — USPS business mailboxes 93, 581 homes
Route R003 — USPS business mailboxes 78, 442 homes
Route C001 — USPS business mailboxes 41, 795 homes
Route C002 — USPS business mailboxes 12, 680 homes
Route R004 — USPS business mailboxes 12, 631 homes

Select these 5 routes on the route map

Every carrier route in 61080

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	795	41	$43,108	—	—	—
C002	City	680	12	$60,438	—	—	—
C003	City	581	93	$74,214	—	—	—
C004	City	196	2	$74,214	—	—	—
R001	Rural	463	4	$115,203	—	—	—
R002	Rural	643	3	$43,108	—	—	—
R003	Rural	442	78	$91,176	—	—	—
R004	Rural	631	12	$90,060	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 61080 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

61073 — Roscoe village, IL (4 mi)
61011 — Loves Park city, IL (7.6 mi)
53511 — Beloit city, WI (7.7 mi)
53525 — Clinton village, WI (8.2 mi)
61072 — Rockton village, IL (8.3 mi)
61115 — Machesney Park village, IL (8.4 mi)
61065 — Poplar Grove village, IL (9.3 mi)
53501 (9.7 mi)

Areas that include 61080

South Beloit, IL ZIP codes — 1 ZIP code
Boone County ZIP codes — 9 ZIP codes
Winnebago County ZIP codes — 22 ZIP codes
Illinois ZIP code data

Where it ranks

Mail every home in 61080

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) 61080, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 61080 in?: 61080 is a South Beloit, IL mailing address. By land area, 23% lies inside South Beloit and 3% lies inside Roscoe; the rest is outside any Census-defined city or community.
What county is 61080 in?: 61080 is mostly in Winnebago County (71% of its land), with smaller parts in Boone County.
What is the population of 61080?: About 10,955 people (±482), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 11,252.
What is the median household income in 61080?: $76,579 (±$12,646), 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 61080?: 8 USPS carrier routes with 4,431 residential and 245 business mailboxes (4,678 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 61080?: The closest, measured center to center: 61073 (4 mi, Roscoe), 61011 (7.6 mi, Loves Park), 53511 (7.7 mi, Beloit), 53525 (8.2 mi, Clinton), 61072 (8.3 mi, Rockton) and 61115 (8.4 mi, Machesney Park).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.