Rocklake, ND 58365 ZIP Code Profile

Related Place Profiles:
Crocus, ND | Rock Lake, ND

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ZIP Code 58365: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Rocklake, ND 58365

Not Acceptable, USPS
Armourdale, ND 58365
Crocus, ND 58365
Rock Lake, ND 58365

  • ZIP Code Type: STANDARD
  • County: Towner County
  • Centroid: Latitude 48.858, Longitude -99.13
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes
  • Businesses Addresses: 12
  • PO Box Addresses: 72
  • Residential Addresses: 73
    • Multi-Family Addresses: 6
    • Single Family Addresses: 67

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

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58365 ZIP Code Map

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Rocklake, ND 58365 Data & Demographics (As of July 1, 2017)


Total Population 252
Daytime Population: Workers 127
Daytime Population: Residents 82
Total Daytime Population (TDP) 209
Ratio TDP/Total Population1 0.83
Population in Households 252
Population in Familes 192
Population in Group Qrtrs 0
Population Density2 1
Diversity Index3 12


Median Household Income $59,560
Average Household Income $77,760
Per Capita Income $41,040


Total Housing Units 205 (100%)
Owner Occupied HU 108 (52.7%)
Renter Occupied HU 25 (12.2%)
Vacant Housing Units 72 (35.1%)
Median Home Value $59,259
Average Home Value $101,852


Total Households 133
Average Household Size 1.89
Family Households 76
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population -0.74% -0.56%
Households -0.8% -0.61%
Families -1.21% -0.8%
Median Household Income   1.88%
Per Capita Income   2.57%

Rocklake, ND 58365 - Peer Comparisons by Rank and Percentile

The table below compares 58365 to the other 384 ZIP Codes in North Dakota by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 274 29th
Population Density # 364 7th
Diversity Index # 209 46th
Median Household Income # 173 55th
Per Capita Income # 54 86th

Additional comparisons and rankings can be made with a VERY EASY TO USE North Dakota Census Data Comparison Tool.

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