61008 ZIP Code, Belvidere, IL

61008 is a ZIP code in Belvidere, Illinois in Boone County. It covers 84 square miles of land. The closest ZIP codes are 61038, 61016 and 61112. 33,582 people live here in 12,869 households, more than in 9 of every 10 Illinois ZIP codes. With about 398 people per square mile it is lightly settled, and most homes are owner-occupied (77%). Median household income is $76,604, close to the Illinois median of $83,390.

Quick facts

Key figures

MeasureValue
Residents33,582
Households12,869
Median household income$76,604
Income per person$39,514
Median age40.3
Homeowners76.6%
Median home value$195,800
Median rent$998
Bachelor's degree or higher20.7%
Average commute (minutes)24.7
Households with kids under 1831.7%
Moved in the past year7.7%
Below the poverty line12.3%
Broadband internet90.5%
Speak a non-English language at home23.3%

Household income

% of householdsValue
<$10K2.6%
$10–15K5.6%
$15–25K5.1%
$25–35K7.4%
$35–50K12.9%
$50–75K15.5%
$75–100K13.8%
$100–150K15.3%
$150–200K10.5%
$200K+11.2%

Age

% of all residentsValue
<1010.6%
10–1915.2%
20–246.8%
25–3410.9%
35–4412.0%
45–5413.0%
55–6414.6%
65–749.9%
75+7.0%

Tenure

% of housing unitsValue
Owned, with mortgage44.5%
Owned outright29.5%
Rented22.2%
Vacant3.8%

Type of building

% of housing unitsValue
Detached house73.4%
Townhome5.3%
2–4 units7.4%
5–19 units2.8%
20+ units3.9%
Mobile / other7.4%

Businesses in 61008

627 business establishments with 14,029 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

61008 has 23 USPS carrier routes with 12,859 residential and 682 business mailboxes. Open the EDDM route map.

Carrier routes in 61008

61008 has 23 USPS carrier routes (12 city (C), 11 rural (R)) with 12,859 residential and 682 business mailboxes. Routes range from 263 homes (R099) to 730 homes (R011); the median route has 569 homes. The Census counted 12,869 households in 61008 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4997
500–74916
750–9990
1,000–1,4990
1,500+0

Best routes in 61008 for…

Most businesses

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

  1. Route C003 — USPS business mailboxes 99, 480 homes
  2. Route C013 — USPS business mailboxes 66, 440 homes
  3. Route R011 — USPS business mailboxes 58, 730 homes
  4. Route R006 — USPS business mailboxes 57, 690 homes
  5. Route C005 — USPS business mailboxes 54, 441 homes

Select these 5 routes on the route map

Every carrier route in 61008

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City55934$16,497———
C002City65420$53,628———
C003City48099$53,171———
C004City64618$53,628———
C005City44154$53,171———
C006City51414$53,171———
C007City50110$86,763———
C009City53032$86,763———
C010City4806$86,763———
C011City4856$53,628———
C012City60510$16,497———
C013City44066$53,171———
R001Rural57415$73,284———
R002Rural69348$71,224———
R004Rural5736$179,418———
R005Rural56933$71,082———
R006Rural69057$71,082———
R007Rural48318$103,560———
R008Rural5789$81,096———
R009Rural69537$103,435———
R010Rural67626$40,384———
R011Rural73058$68,205———
R099Rural2636$81,096———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 61008 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

Areas that include 61008

Where it ranks

Mail every home in 61008

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) 61008, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 61008 in?
61008 is a Belvidere, IL mailing address. By land area, 14% lies inside Belvidere and 1% lies inside Timberlane; the rest is outside any Census-defined city or community.
What county is 61008 in?
61008 is in Boone County.
What is the population of 61008?
About 33,582 people (±1,025), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 33,747.
What is the median household income in 61008?
$76,604 (±$8,072), 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 61008?
23 USPS carrier routes with 12,859 residential and 682 business mailboxes (13,540 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 61008?
The closest, measured center to center: 61038 (5.4 mi, Garden Prairie), 61016 (6.5 mi, Cherry Valley), 61112 (6.9 mi, Cherry Valley), 61108 (8.3 mi, Rockford), 61107 (8.7 mi, Rockford) and 61114 (8.8 mi, Rockford).

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