Watertown, SD Profile: Facts & Data

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Watertown, South Dakota - Basic Facts

The City of Watertown is the 5th largest city in South Dakota with a population of 22,603 as of July 1, 2019. Watertown ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in South Dakota. See peer rankings below.

The primary coordinate point for Watertown is located at latitude 44.8994 and longitude -97.1151 in Codington County. The formal boundaries for the City of Watertown encompass a land area of 17.68 sq. miles and a water area of 7.98 sq. miles. Codington County is in the Central time zone (GMT -6). The elevation is 1,739 feet.

The City of Watertown (GNIS ID: 1267627) has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.


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  1. Watertown 2019 Demographic Data
  2. Growth Rates for Watertown (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. South Dakota Research Tools (Easy Tools & Current Data)
  3. South Dakota Data Comparison Tool - 2019 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2019, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


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Watertown, SD Data & Demographics (As of July 1, 2019)

HOUSING AFFORDABILITY INDEX

Watertown, SD Housing Affordability Index is 135
State of South Dakota Housing Affordability Index is 142
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.

WEALTH INDEX

Watertown, SD Wealth Index is 74
State of South Dakota Wealth Index is 79
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.

These new demographic attributes are availiable for cities, Counties, ZIP Codes and even neighborhoods (Census Blocks) when you search by a specific South Dakota address.

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  1. New 2-Minute Introduction and Concise Guide to Big Data which will help you make the most effective use of HomeTownLocator Tools.
  2. References & Data Sources page for more information about methodology and sources of data.

POPULATION

Total Population 22,603
Population in Households 22,240
Population in Familes 16,816
Population in Group Qrtrs 363
Population Density 1,254
Diversity Index1 18
 

INCOME

Median Household Income $51,162
Average Household Income $69,077
Per Capita Income $29,998
Wealth Index3 74

HOUSING

Total Housing Units 10,810 (100%)
Owner Occupied HU 5,841 (54.0%)
Renter Occupied HU 4,003 (37.0%)
Vacant Housing Units 966 ( 8.9%)
Median Home Value $182,315
Housing Affordability Index2 135
 

HOUSEHOLDS

Total Households 9,844
Average Household Size 2.26
Family Households 5,815
Average Family Size 3
NOTES
  1. 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.
  2. 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.
  3. 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.

GROWTH RATE / YEAR

2010-2019 2019-2024
Population 0.55% 0.56%
Households 0.64% 0.62%
Families 0.48% 0.46%
Median Household Income   1.3%
Per Capita Income   2.44%

Watertown, SD - Peer Comparisons by Rank and Percentile

The table below compares Watertown to the other 393 incorporated cities, towns and CDPs in South Dakota by rank and percentile using July 1, 2019 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 # 5 99th
Population Density # 58 85th
Diversity Index # 156 61st
Median Household Income # 252 36th
Per Capita Income # 191 52nd

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

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