What city is 58278 in?

58278 is a Thompson, ND mailing address. None of its land lies inside a Census-defined city or community.

What county is 58278 in?

58278 is in Grand Forks County.

What is the population of 58278?

About 2,168 people (±284), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 2,132.

What is the median household income in 58278?

$111,250 (±$20,855), compared with $76,657 for North Dakota as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 58278?

2 USPS carrier routes with 751 residential and 7 business mailboxes (758 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 58278?

The closest, measured center to center: 58201 (6 mi, Grand Forks), 58275 (6.3 mi, Reynolds), 58202 (9.9 mi, Grand Forks), 58228 (12 mi, Emerado), 58203 (13.2 mi, Grand Forks) and 58218 (13.4 mi, Buxton).

58278 ZIP Code, Thompson, ND

58278 is a ZIP code in Thompson, North Dakota in Grand Forks County. It covers 105 square miles of land. The closest ZIP codes are 58201, 58275 and 58202. 2,168 people live here in 799 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (95%). Median household income is $111,250, above the North Dakota median of $76,657; the median age is 45.0, older than most ZIP codes.

Quick facts

Mailing city: Thompson, ND
County: Grand Forks County
Land area: 105 sq mi
Population: 2,168
Median household income: $111,250
Carrier routes: 2 (751 homes)

Key figures

Measure	Value
Residents	2,168
Households	799
Median household income	$111,250
Income per person	$48,820
Median age	45
Homeowners	94.5%
Median home value	$313,400
Median rent	$817
Bachelor's degree or higher	41.1%
Average commute (minutes)	20.9
Households with kids under 18	34.2%
Moved in the past year	3.6%
Below the poverty line	4.1%
Broadband internet	93.0%
Speak a non-English language at home	3.3%

Household income

% of households	Value
<$10K	4.3%
$10–15K	1.9%
$15–25K	2.9%
$25–35K	1.9%
$35–50K	4.9%
$50–75K	13.1%
$75–100K	17.3%
$100–150K	21.0%
$150–200K	16.3%
$200K+	16.5%

Age

% of all residents	Value
<10	11.0%
10–19	18.0%
20–24	2.0%
25–34	7.8%
35–44	11.2%
45–54	17.3%
55–64	21.0%
65–74	6.6%
75+	5.2%

Tenure

% of housing units	Value
Owned, with mortgage	49.7%
Owned outright	39.9%
Rented	5.2%
Vacant	5.2%

Type of building

% of housing units	Value
Detached house	89.0%
Townhome	1.1%
2–4 units	0.4%
5–19 units	2.5%
20+ units	0.0%
Mobile / other	7.1%

Businesses in 58278

41 business establishments with 164 employees (ZIP Codes Business Patterns 2023).

Construction: 10
Other Services (except Public Administration): 5
Retail Trade: 4
Health Care and Social Assistance: 4
Wholesale Trade: 3
Real Estate and Rental and Leasing: 3
Administrative and Support and Waste Management and Remediation Services: 3

EDDM carrier routes

58278 has 2 USPS carrier routes with 751 residential and 7 business mailboxes. Open the EDDM route map.

Carrier routes in 58278

58278 has 2 USPS carrier routes (2 rural (R)) with 751 residential and 7 business mailboxes. Routes range from 357 homes (R004) to 394 homes (R005); the median route has 376 homes. The Census counted 799 households in 58278 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

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

Best routes in 58278 for…

Most businesses

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

Route R005 — USPS business mailboxes 4, 394 homes
Route R004 — USPS business mailboxes 3, 357 homes

Select these 2 routes on the route map

Every carrier route in 58278

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
R004	Rural	357	3	$86,618	—	—	—
R005	Rural	394	4	$108,700	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 58278 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

58201 — Grand Forks city, ND (6 mi)
58275 — Reynolds city, ND (6.3 mi)
58202 — Grand Forks city, ND (9.9 mi)
58228 — Emerado city, ND (12 mi)
58203 — Grand Forks city, ND (13.2 mi)
58218 — Buxton city, ND (13.4 mi)
56723 — Fisher city, MN (14.7 mi)
56721 — East Grand Forks city, MN (15.3 mi)

Areas that include 58278

Thompson, ND ZIP codes — 1 ZIP code
Grand Forks County ZIP codes — 21 ZIP codes
North Dakota ZIP code data

Where it ranks

Mail every home in 58278

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) 58278, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 58278 in?: 58278 is a Thompson, ND mailing address. None of its land lies inside a Census-defined city or community.
What county is 58278 in?: 58278 is in Grand Forks County.
What is the population of 58278?: About 2,168 people (±284), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 2,132.
What is the median household income in 58278?: $111,250 (±$20,855), compared with $76,657 for North Dakota as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 58278?: 2 USPS carrier routes with 751 residential and 7 business mailboxes (758 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 58278?: The closest, measured center to center: 58201 (6 mi, Grand Forks), 58275 (6.3 mi, Reynolds), 58202 (9.9 mi, Grand Forks), 58228 (12 mi, Emerado), 58203 (13.2 mi, Grand Forks) and 58218 (13.4 mi, Buxton).

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