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Data updated 2026-10-07

ZIP Code 58640 · Killdeer, ND

Dunn County · pop 1,369 · ACS 2020–2024

The median household income in ZIP Code 58640 (Killdeer, ND) is $100,688, higher than 88% of the other ZIP Codes in North Dakota.

01 — Where it stands

$100,688
Median household income
± $12,032 MOE
$343,700
Median home value
± $50,476 MOE
$869
Median gross rent
6.6%
Poverty rate
Percentiles for ZIP Code 58640 within Dunn County, North Dakota and the U.S.
MeasureValueCounty percentileState percentileU.S. percentile
Median household income$100,688 ± $12,032— (fewer than 5 ZIP Codes)88th percentile (96 ZIP Codes compared)79th percentile (22,922 ZIP Codes compared)
Per capita income$53,409— (fewer than 5 ZIP Codes)95th percentile (96 ZIP Codes compared)82nd percentile (22,922 ZIP Codes compared)
Poverty rate6.6%— (fewer than 5 ZIP Codes)24th percentile (96 ZIP Codes compared)23rd percentile (22,922 ZIP Codes compared)
Adults with a bachelor’s degree or higher29.9%— (fewer than 5 ZIP Codes)66th percentile (96 ZIP Codes compared)60th percentile (22,922 ZIP Codes compared)
Owner-occupied homes78.6%— (fewer than 5 ZIP Codes)64th percentile (96 ZIP Codes compared)56th percentile (22,922 ZIP Codes compared)
Housing vacancy rate26.3%— (fewer than 5 ZIP Codes)91st percentile (96 ZIP Codes compared)90th percentile (22,922 ZIP Codes compared)
Median home value$343,700 ± $50,476— (fewer than 5 ZIP Codes)93rd percentile (95 ZIP Codes compared)68th percentile (22,833 ZIP Codes compared)
Median gross rent$869— (fewer than 5 ZIP Codes)64th percentile (96 ZIP Codes compared)28th percentile (22,865 ZIP Codes compared)
Income inequality (Gini index)0.469— (fewer than 5 ZIP Codes)67th percentile (96 ZIP Codes compared)76th percentile (22,922 ZIP Codes compared)
Average adjusted gross income per return$203,735— (fewer than 5 ZIP Codes)100th percentile (93 ZIP Codes compared)96th percentile (22,230 ZIP Codes compared)
Returns with AGI of $200,000 or more16.3%— (fewer than 5 ZIP Codes)98th percentile (93 ZIP Codes compared)91st percentile (22,230 ZIP Codes compared)
Business establishments per 1,000 residents92.8— (fewer than 5 ZIP Codes)100th percentile (96 ZIP Codes compared)98th percentile (22,700 ZIP Codes compared)
Average annual pay per employee$88,444— (fewer than 5 ZIP Codes)94th percentile (94 ZIP Codes compared)96th percentile (22,551 ZIP Codes compared)

— = fewer than 5 ZIP Codes in the group.

Percentile groups: Dunn County · North Dakota · U.S. Hover a percentile for the number of ZIP Codes compared. MOE = 90% margin of error.

02 — Home prices

+25.5%
1-year change, Dunn County
2023–2024
—
5-year change, Dunn County
2019–2024
—
10-year change, Dunn County
2014–2024

Home price index — Dunn County

Home price index, Dunn County, 2020–2024Line chart of the annual home price index: 100.0 in 2020 and 124.3 in 2024. Every value is listed in the data table below the chart.9010011012013020202024124.3

FHFA does not publish a ZIP-level index for this area; the chart shows the Dunn County index. FHFA county index (2020 = 100) — annual, developmental, not seasonally adjusted.

Data table
Home price index by year, Dunn County
YearIndexAnnual change
2020100.0—
2021102.5+2.5%
2022105.5+3.0%
202399.1−6.1%
2024124.3+25.5%

03 — Nearby ZIP Codes

ZIP Code 58640 and nearby ZIP Codes
ZIPPlaceDistanceMedian household incomeMedian home valuePoverty rate5-yr HPI change
58640Killdeer, NDthis ZIP Code$100,688$343,7006.6%—
58626Dunn Center, ND15.1 mi$93,224$237,5006.6%—
58642Manning, ND17.8 mi$101,700$276,1008.5%—
58634Grassy Butte, ND21.4 mi$157,750$412,36013.9%—
58757Mandaree, ND22.9 mi$81,500$200,00038.4%—
58627Fairfield, ND22.9 mi$93,036$345,8003.2%—
58636Halliday, ND26.5 mi$62,222$141,30016.0%—

Up to six nearest ZIP Code Tabulation Areas within 30 miles, by straight-line distance between Census center points (2024 Gazetteer).

04 — Business mix

127
Establishments
1,504
Employees
$133.0M
Annual payroll
$88,444
Average pay per employee
Establishments by sector, ZIP Code 58640
SectorEstablishmentsShare of ZIPU.S. shareRelative concentration
Transportation & warehousing2116.5%3.3%5.0×
Mining, quarrying, oil & gas2015.7%0.2%82.9×
Construction1411.0%9.6%1.1×
Retail trade1310.2%12.4%0.8×
Other services129.4%9.5%1.0×
Accommodation & food services97.1%9.3%0.8×
Wholesale trade75.5%4.4%1.2×
Health care & social assistance64.7%11.9%0.4×
Administrative & support services53.9%5.3%0.7×
Real estate & rental43.1%5.5%0.6×
All other sectors1310.2%19.2%0.5×

Counts are establishments (business locations), not jobs. Relative concentration = the sector’s share of establishments here divided by its share in the U.S. (1.0× = the same share). Average pay is shown only where at least 20 employees are reported. ZIP Code Business Patterns 2023.

05 — About this data

How percentiles are calculated

Percentiles compare this ZIP Code with other ZIP Codes in the same county, the same state and the whole country. Only ZIP Codes with their own American Community Survey estimate, a population of at least 1,000 and a published median household income are compared, and only those with a value for the measure. A percentile of 64th means the value is higher than 64% of the other ZIP Codes in that group (0 is the lowest value, 100 the highest); it describes the size of a number, not a judgment about the area. County and state percentiles are left blank when the group has fewer than 5 ZIP Codes. The number of ZIP Codes compared is shown with each percentile.

Census figures are published for ZIP Code Tabulation Areas, which approximate USPS ZIP Code delivery areas; values shown as — are not published or are suppressed by the source.

Use of this page

Area statistics only. These figures describe a ZIP Code area — not any person or household — and do not rate the area or the people who live there. CoverFi is not a consumer reporting agency; do not use this page to make decisions about credit, insurance, employment or housing.

Sources

  1. U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ZIP Code Tabulation Areas. Estimates are survey-based and have margins of error.
  2. U.S. Census Bureau, ZIP Code Business Patterns 2023 (establishment counts by NAICS sector; employment and payroll totals).
  3. Federal Housing Finance Agency, House Price Index for five-digit ZIP Codes, census tracts and counties — annual, developmental, not seasonally adjusted.
  4. IRS Statistics of Income, Individual Income Tax ZIP Code Data, tax year 2022.
  5. U.S. Census Bureau, 2024 Gazetteer Files (ZCTA locations, used for nearby ZIP Codes).
  6. HUD USPS ZIP Code Crosswalk Files (ZIP-to-tract and ZIP-to-county assignment).

This product uses Census Bureau data but is not endorsed or certified by the Census Bureau. This product uses the HUD User Data API but is not endorsed or certified by HUD User. ZIP Code Tabulation Areas are Census approximations of USPS ZIP Code delivery areas and may not match them exactly. ZIP Code is a trademark of the United States Postal Service.