What city is 61108 in?

61108 is a Rockford, IL mailing address. By land area, 68% lies inside Rockford and 11% lies inside Cherry Valley; the rest is outside any Census-defined city or community.

What is the population of 61108?

About 30,355 people (±1,733), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 29,660.

What is the median household income in 61108?

$64,415 (±$5,795), 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 61108?

22 USPS carrier routes with 12,231 residential and 1,194 business mailboxes (13,425 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 61108?

The closest, measured center to center: 61112 (1.7 mi, Cherry Valley), 61107 (2.1 mi, Rockford), 61114 (3.6 mi, Rockford), 61104 (4 mi, Rockford), 61016 (4.9 mi, Cherry Valley) and 61109 (5.2 mi, Rockford).

61108 ZIP Code, Rockford, IL

61108 is a ZIP code in Rockford, Illinois in Winnebago County. It covers 11 square miles of land. The closest ZIP codes are 61112, 61107 and 61114. 30,355 people live here in 12,102 households. At about 2,781 people per square mile it has suburban density, and owners and renters are mixed (65% own). Median household income is $64,415, below the Illinois median of $83,390.

Quick facts

Mailing city: Rockford, IL
County: Winnebago County
Land area: 11 sq mi
Population: 30,355
Median household income: $64,415
Carrier routes: 22 (12,231 homes)

Key figures

Measure	Value
Residents	30,355
Households	12,102
Median household income	$64,415
Income per person	$30,953
Median age	39.1
Homeowners	65.4%
Median home value	$144,800
Median rent	$1,013
Bachelor's degree or higher	24.7%
Average commute (minutes)	22.7
Households with kids under 18	27.5%
Moved in the past year	15.9%
Below the poverty line	14.0%
Broadband internet	89.6%
Speak a non-English language at home	24.8%

Household income

% of households	Value
<$10K	6.3%
$10–15K	3.6%
$15–25K	7.0%
$25–35K	9.0%
$35–50K	14.3%
$50–75K	17.2%
$75–100K	16.5%
$100–150K	15.6%
$150–200K	6.3%
$200K+	4.2%

Age

% of all residents	Value
<10	12.7%
10–19	12.7%
20–24	7.0%
25–34	12.9%
35–44	10.8%
45–54	10.4%
55–64	12.5%
65–74	12.0%
75+	9.0%

Tenure

% of housing units	Value
Owned, with mortgage	35.7%
Owned outright	26.5%
Rented	32.7%
Vacant	5.1%

Type of building

% of housing units	Value
Detached house	70.6%
Townhome	6.0%
2–4 units	10.0%
5–19 units	5.4%
20+ units	7.1%
Mobile / other	0.8%

Businesses in 61108

920 business establishments with 18,746 employees (ZIP Codes Business Patterns 2023).

Retail Trade: 168
Health Care and Social Assistance: 140
Accommodation and Food Services: 124
Professional, Scientific, and Technical Services: 98
Finance and Insurance: 94
Other Services (except Public Administration): 77
Construction: 42
Administrative and Support and Waste Management and Remediation Services: 40

EDDM carrier routes

61108 has 22 USPS carrier routes with 12,231 residential and 1,194 business mailboxes. Open the EDDM route map.

Carrier routes in 61108

61108 has 22 USPS carrier routes (17 city (C), 5 rural (R)) with 12,231 residential and 1,194 business mailboxes. Routes range from 63 homes (C040) to 895 homes (C031); the median route has 557 homes. The Census counted 12,102 households in 61108 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	1
250–499	7
500–749	11
750–999	3
1,000–1,499	0
1,500+	0

Best routes in 61108 for…

Most businesses

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

Route C040 — USPS business mailboxes 355, 63 homes
Route C035 — USPS business mailboxes 201, 342 homes
Route C036 — USPS business mailboxes 162, 445 homes
Route C048 — USPS business mailboxes 71, 550 homes
Route C021 — USPS business mailboxes 51, 545 homes

Select these 5 routes on the route map

Every carrier route in 61108

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C021	City	545	51	$55,675	—	—	—
C022	City	656	10	$23,966	—	—	—
C023	City	776	2	$55,814	—	—	—
C025	City	531	4	$55,675	—	—	—
C026	City	752	22	$81,134	—	—	—
C028	City	443	50	$63,573	—	—	—
C030	City	700	16	$31,355	—	—	—
C031	City	895	29	$55,814	—	—	—
C035	City	342	201	$63,115	—	—	—
C036	City	445	162	$75,889	—	—	—
C038	City	643	0	$40,109	—	—	—
C039	City	749	9	$52,724	—	—	—
C040	City	63	355	$68,733	—	—	—
C043	City	458	41	$38,339	—	—	—
C044	City	586	23	$84,757	—	—	—
C047	City	338	26	$31,355	—	—	—
C048	City	550	71	$55,675	—	—	—
R005	Rural	480	36	$111,653	—	—	—
R007	Rural	563	18	$63,591	—	—	—
R023	Rural	618	13	$61,943	—	—	—
R027	Rural	450	26	$111,653	—	—	—
R037	Rural	648	29	$63,591	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 61108 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

61112 — Cherry Valley village, IL (1.7 mi)
61107 — Rockford city, IL (2.1 mi)
61114 — Rockford city, IL (3.6 mi)
61104 — Rockford city, IL (4 mi)
61016 — Cherry Valley village, IL (4.9 mi)
61109 — Rockford city, IL (5.2 mi)
61111 — Loves Park city, IL (5.6 mi)
61103 — Rockford city, IL (7.3 mi)

Areas that include 61108

Rockford, IL ZIP codes — 9 ZIP codes
Cherry Valley, IL ZIP codes — 4 ZIP codes
Winnebago County ZIP codes — 22 ZIP codes
Illinois ZIP code data

Where it ranks

Mail every home in 61108

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) 61108, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 61108 in?: 61108 is a Rockford, IL mailing address. By land area, 68% lies inside Rockford and 11% lies inside Cherry Valley; the rest is outside any Census-defined city or community.
What county is 61108 in?: 61108 is in Winnebago County.
What is the population of 61108?: About 30,355 people (±1,733), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 29,660.
What is the median household income in 61108?: $64,415 (±$5,795), 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 61108?: 22 USPS carrier routes with 12,231 residential and 1,194 business mailboxes (13,425 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 61108?: The closest, measured center to center: 61112 (1.7 mi, Cherry Valley), 61107 (2.1 mi, Rockford), 61114 (3.6 mi, Rockford), 61104 (4 mi, Rockford), 61016 (4.9 mi, Cherry Valley) and 61109 (5.2 mi, Rockford).

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