56342 ZIP Code, Isle, MN
56342 is a ZIP code in Isle, Minnesota — mostly in Aitkin County (40% of its land), with smaller parts in Kanabec and Mille Lacs counties. It covers 193 square miles of land. The closest ZIP codes are 56386, 56350 and 56359. 2,788 people live here in 1,342 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (86%). Median household income is $63,295, below the Minnesota median of $89,062; the median age is 56.9, older than most ZIP codes.
Quick facts
- Mailing city: Isle, MN
- County: Aitkin County
- Land area: 193 sq mi
- Population: 2,788
- Median household income: $63,295
- Carrier routes: 4 (1,563 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 2,788 |
| Households | 1,342 |
| Median household income | $63,295 |
| Income per person | $45,018 |
| Median age | 56.9 |
| Homeowners | 86.0% |
| Median home value | $246,500 |
| Median rent | $814 |
| Bachelor's degree or higher | 17.5% |
| Average commute (minutes) | 36.4 |
| Households with kids under 18 | 15.4% |
| Moved in the past year | 9.5% |
| Below the poverty line | 12.2% |
| Broadband internet | 84.9% |
| Speak a non-English language at home | 2.8% |
Household income
| % of households | Value |
|---|---|
| <$10K | 4.7% |
| $10–15K | 3.7% |
| $15–25K | 9.4% |
| $25–35K | 8.8% |
| $35–50K | 10.7% |
| $50–75K | 20.5% |
| $75–100K | 12.5% |
| $100–150K | 15.3% |
| $150–200K | 5.5% |
| $200K+ | 8.9% |
Age
| % of all residents | Value |
|---|---|
| <10 | 7.6% |
| 10–19 | 9.5% |
| 20–24 | 3.3% |
| 25–34 | 7.2% |
| 35–44 | 7.2% |
| 45–54 | 12.4% |
| 55–64 | 23.3% |
| 65–74 | 18.6% |
| 75+ | 10.9% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 23.5% |
| Owned outright | 23.1% |
| Rented | 7.5% |
| Vacant | 45.9% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 78.2% |
| Townhome | 1.0% |
| 2–4 units | 0.9% |
| 5–19 units | 0.8% |
| 20+ units | 1.1% |
| Mobile / other | 17.8% |
Businesses in 56342
72 business establishments with 612 employees (ZIP Codes Business Patterns 2023).
- Retail Trade: 17
- Other Services (except Public Administration): 10
- Accommodation and Food Services: 9
- Manufacturing: 8
- Transportation and Warehousing: 4
- Arts, Entertainment, and Recreation: 4
- Construction: 3
- Finance and Insurance: 3
EDDM carrier routes
56342 has 4 USPS carrier routes with 1,563 residential and 45 business mailboxes. Open the EDDM route map.
Carrier routes in 56342
56342 has 4 USPS carrier routes (3 rural (R), 1 highway contract (H)) with 1,563 residential and 45 business mailboxes. Routes range from 239 homes (R021) to 465 homes (H069); the median route has 430 homes. The Census counted 1,342 households in 56342 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 1 |
| 250–499 | 3 |
| 500–749 | 0 |
| 750–999 | 0 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 56342 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route H069 — USPS business mailboxes 13, 465 homes
- Route R002 — USPS business mailboxes 13, 425 homes
- Route R001 — USPS business mailboxes 11, 434 homes
- Route R021 — USPS business mailboxes 8, 239 homes
Select these 4 routes on the route map
Every carrier route in 56342
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| H069 | Highway contract | 465 | 13 | $53,161 | — | — | — |
| R001 | Rural | 434 | 11 | $53,161 | — | — | — |
| R002 | Rural | 425 | 13 | $53,161 | — | — | — |
| R021 | Rural | 239 | 8 | $53,161 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 56342 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
- 56386 — Wahkon city, MN (8.7 mi)
- 56350 — McGrath city, MN (10.7 mi)
- 56359 — Vineland CDP, MN (15.3 mi)
- 55051 — Mora city, MN (17.1 mi)
- 55735 — Finlayson city, MN (17.3 mi)
- 55007 — Brook Park city, MN (19 mi)
- 56450 — Garrison city, MN (23 mi)
- 56358 — Ogilvie city, MN (24.2 mi)
Areas that include 56342
- Isle, MN ZIP codes — 1 ZIP code
- Aitkin County ZIP codes — 11 ZIP codes
- Kanabec County ZIP codes — 6 ZIP codes
- Mille Lacs County ZIP codes — 11 ZIP codes
- Minnesota ZIP code data
Where it ranks
- No. 4 of 6: highest median household income in Aitkin County
- No. 5 of 6: highest median home value in Aitkin County
- No. 3 of 6: highest share of owner-occupied homes in Aitkin County
- No. 3 of 6: highest share of residents who moved in during the past year in Aitkin County
- No. 5 of 6: lowest median age in Aitkin County
- No. 2 of 6: highest median age in Aitkin County
- No. 2 of 6: fastest population growth in Aitkin County
Mail every home in 56342
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) 56342, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 56342 in?
- 56342 is a Isle, MN mailing address. By land area, 1% lies inside Isle; the rest is outside any Census-defined city or community.
- What county is 56342 in?
- 56342 is mostly in Aitkin County (40% of its land), with smaller parts in Kanabec and Mille Lacs counties.
- What is the population of 56342?
- About 2,788 people (±191), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 2,791.
- What is the median household income in 56342?
- $63,295 (±$4,732), compared with $89,062 for Minnesota as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 56342?
- 4 USPS carrier routes with 1,563 residential and 45 business mailboxes (1,608 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 56342?
- The closest, measured center to center: 56386 (8.7 mi, Wahkon), 56350 (10.7 mi, McGrath), 56359 (15.3 mi, Vineland), 55051 (17.1 mi, Mora), 55735 (17.3 mi, Finlayson) and 55007 (19 mi, Brook Park).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.