99320 ZIP Code Profile, Map, Data & Demographics

Related Place Profiles:
Benton City, WA | Kiona, WA

ZIP Code 99320: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Benton City, WA 99320

Not Acceptable, USPS
Kiona, WA 99320

Today's market moves fast!
Get Pre-Approved & Be Ready to Buy!
  • ZIP Code Type: STANDARD
  • County: Benton County
  • Centroid: Latitude 46.257, Longitude -119.472
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes
  • Businesses Addresses: 141
  • PO Box Addresses: 822
  • Residential Addresses: 3,405
    • Multi-Family Addresses: 0
    • Single Family Addresses: 3,405

The ZIP Code maps and database are updated 4 times per year.
Database updated: July 1, 2022, Maps updated: May 5, 2022.


Benton City, WA 99320 Data & Demographics (As of July 1, 2021)


Total Population 11,002 (100%)
Population in Households 11,002 (100.0%)
Population in Families 9,285 (84.4%)
Population in Group Quarters1 0
Population Density 71
Diversity Index2 63


Median Household Income $65,866
Average Household Income $80,716
% of Income for Mortgage4 18%
Per Capita Income $29,295
Wealth Index5 76


Total HU (Housing Units) 4,151 (100%)
Owner Occupied HU 3,159 (76.1%)
Renter Occupied HU 834 (20.1%)
Vacant Housing Units 158 ( 3.8%)
Median Home Value $285,168
Average Home Value $385,146
Housing Affordability Index3 137


Total Households 3,993
Average Household Size 2.76
Family Households 2,928
Average Family Size 3
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. 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 races 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.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2021 2021-2026
Population 1.66% 1.68%
Households 1.7% 1.68%
Families 1.57% 1.62%
Median Household Income   2.16%
Per Capita Income   2.43%
Owner Occupied HU   1.93%

Benton City, WA 99320 - Peer Comparisons by Rank and Percentile

The table below compares 99320 to the other 588 ZIP Codes in Washington by rank and percentile using July 1, 2021 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 # 229 61st
Population Density # 344 42nd
Median Household Income # 265 55th
Housing Affordability Index # 470 80th
Per Capita Income # 399 32nd
Diversity Index # 128 79th

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

Popular Places Near ZIP Code 99320

Use HTL Address Research for a Washington Address and get...

Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2021, data includes home values, household income, percentage of homes owned, rented or vacant, etc.

Quick & Easy Ways to...

  1. Get Current Demographic Data for Cities, Towns, and ZIP Codes
  2. View Boundary Maps, for Cities, Towns, and ZIP Codes
  3. Locate Physical, Cultural, and Historical Features

Washington Census Data Comparison Tool

Compare Washington July 1, 2021 Data
Highest or Lowest:

More Tools and Resources:

  1. For information about schools and school attendance zones, use the HTL Address Tool
  2. Our new HTL Neighborhood Explorer provides lots of detail about any neighborhood.
  3. The new 2-Minute Introduction and Concise Guide to Big Data which will help you make the most effective use of HomeTownLocator Tools.
  4. See the References & Data Sources page for more information about methodology and sources of data.