What city is 61356 in?

61356 is a Princeton, IL mailing address. By land area, 4% lies inside Princeton; the rest is outside any Census-defined city or community.

What is the population of 61356?

About 10,799 people (±242), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 10,915.

What is the median household income in 61356?

$68,243 (±$3,474), 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 61356?

11 USPS carrier routes with 4,975 residential and 418 business mailboxes (5,393 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 61356?

The closest, measured center to center: 61323 (3.9 mi, Dover), 61315 (8.1 mi, Bureau Junction), 61328 (8.3 mi), 61337 (8.5 mi, Malden), 61322 (8.7 mi, De Pue) and 61379 (8.7 mi, Wyanet).

61356 ZIP Code, Princeton, IL

61356 is a ZIP code in Princeton, Illinois in Bureau County. It covers 190 square miles of land. The closest ZIP codes are 61323, 61315 and 61328. 10,799 people live here in 4,798 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (73%). Median household income is $68,243, below the Illinois median of $83,390; the median age is 46.8, older than most ZIP codes.

Quick facts

Mailing city: Princeton, IL
County: Bureau County
Land area: 190 sq mi
Population: 10,799
Median household income: $68,243
Carrier routes: 11 (4,975 homes)

Key figures

Measure	Value
Residents	10,799
Households	4,798
Median household income	$68,243
Income per person	$41,434
Median age	46.8
Homeowners	72.9%
Median home value	$152,900
Median rent	$794
Bachelor's degree or higher	28.5%
Average commute (minutes)	18
Households with kids under 18	23.7%
Moved in the past year	13.4%
Below the poverty line	11.9%
Broadband internet	87.2%
Speak a non-English language at home	4.0%

Household income

% of households	Value
<$10K	3.8%
$10–15K	5.4%
$15–25K	8.8%
$25–35K	7.3%
$35–50K	10.4%
$50–75K	18.9%
$75–100K	11.9%
$100–150K	18.9%
$150–200K	9.6%
$200K+	4.9%

Age

% of all residents	Value
<10	9.9%
10–19	10.2%
20–24	5.8%
25–34	12.8%
35–44	9.6%
45–54	11.5%
55–64	13.9%
65–74	12.6%
75+	13.7%

Tenure

% of housing units	Value
Owned, with mortgage	38.1%
Owned outright	29.0%
Rented	24.8%
Vacant	8.0%

Type of building

% of housing units	Value
Detached house	74.7%
Townhome	2.5%
2–4 units	7.0%
5–19 units	7.7%
20+ units	3.5%
Mobile / other	4.8%

Businesses in 61356

322 business establishments with 4,587 employees (ZIP Codes Business Patterns 2023).

Retail Trade: 47
Accommodation and Food Services: 44
Other Services (except Public Administration): 44
Health Care and Social Assistance: 38
Finance and Insurance: 24
Professional, Scientific, and Technical Services: 21
Wholesale Trade: 20
Construction: 19

EDDM carrier routes

61356 has 11 USPS carrier routes with 4,975 residential and 418 business mailboxes. Open the EDDM route map.

Carrier routes in 61356

61356 has 11 USPS carrier routes (5 city (C), 6 rural (R)) with 4,975 residential and 418 business mailboxes. Routes range from 233 homes (R002) to 601 homes (C005); the median route has 463 homes. The Census counted 4,798 households in 61356 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	1
250–499	6
500–749	4
750–999	0
1,000–1,499	0
1,500+	0

Best routes in 61356 for…

Most businesses

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

Route C003 — USPS business mailboxes 114, 498 homes
Route R001 — USPS business mailboxes 81, 376 homes
Route R002 — USPS business mailboxes 56, 233 homes
Route C005 — USPS business mailboxes 48, 601 homes
Route C004 — USPS business mailboxes 35, 576 homes

Select these 5 routes on the route map

Every carrier route in 61356

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	463	17	$62,850	—	—	—
C003	City	498	114	$48,167	—	—	—
C004	City	576	35	$62,850	—	—	—
C005	City	601	48	$48,167	—	—	—
C006	City	522	9	$78,107	—	—	—
R001	Rural	376	81	$69,626	—	—	—
R002	Rural	233	56	$69,697	—	—	—
R003	Rural	434	22	$77,964	—	—	—
R004	Rural	340	5	$77,964	—	—	—
R005	Rural	338	23	$102,319	—	—	—
R006	Rural	594	8	$83,189	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 61356 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

61323 — Dover village, IL (3.9 mi)
61315 — Bureau Junction village, IL (8.1 mi)
61328 (8.3 mi)
61337 — Malden village, IL (8.5 mi)
61322 — De Pue village, IL (8.7 mi)
61379 — Wyanet village, IL (8.7 mi)
61359 — Seatonville village, IL (8.9 mi)
61368 — Tiskilwa village, IL (9.7 mi)

Areas that include 61356

Princeton, IL ZIP codes — 1 ZIP code
De Pue, IL ZIP codes — 2 ZIP codes
Bureau Junction, IL ZIP codes — 2 ZIP codes
Dover, IL ZIP codes — 2 ZIP codes
Hollowayville, IL ZIP codes — 1 ZIP code
Bureau County ZIP codes — 26 ZIP codes
Illinois ZIP code data

Where it ranks

Mail every home in 61356

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) 61356, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 61356 in?: 61356 is a Princeton, IL mailing address. By land area, 4% lies inside Princeton; the rest is outside any Census-defined city or community.
What county is 61356 in?: 61356 is in Bureau County.
What is the population of 61356?: About 10,799 people (±242), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 10,915.
What is the median household income in 61356?: $68,243 (±$3,474), 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 61356?: 11 USPS carrier routes with 4,975 residential and 418 business mailboxes (5,393 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 61356?: The closest, measured center to center: 61323 (3.9 mi, Dover), 61315 (8.1 mi, Bureau Junction), 61328 (8.3 mi), 61337 (8.5 mi, Malden), 61322 (8.7 mi, De Pue) and 61379 (8.7 mi, Wyanet).

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