Three Mile Bay, NY Profile: Facts, Map & Data


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Three Mile Bay, New York - Basic Facts

The Three Mile Bay Census Designated Place had a population of 261 as of July 1, 2017.

The primary coordinate point for Three Mile Bay is located at latitude 44.0832 and longitude -76.1979 in Jefferson County. The formal boundaries for the Three Mile Bay Census Designated Place (see map below) encompass a land area of 0.26 sq. miles and a water area of 0 sq. miles. Jefferson County is in the Eastern time zone (GMT -5). The elevation is 259 feet.

The Three Mile Bay Census Designated Place (GNIS ID: 2584295) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

The Three Mile Bay Census Designated Place is located within Town of Lyme, a minor civil division (MCD) of Jefferson County.

Beneath the boundary map are tables with Three Mile Bay population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Neighborhood Data

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Three Mile Bay Census Designated Place, NY Boundary Map

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Boundary Maps: Town of Lyme | Jefferson County | New York Counties

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Three Mile Bay, NY Data & Demographics (As of July 1, 2017)


Total Population 261
Daytime Population: Workers 4
Daytime Population: Residents 135
Total Daytime Population (TDP) 139
Ratio TDP/Total Population1 0.53
Population in Households 261
Population in Familes 211
Population in Group Qrtrs 0
Population Density2 1,013
Diversity Index3 19


Median Household Income $50,000
Average Household Income $64,243
Per Capita Income $27,724


Total Housing Units 120 (100%)
Owner Occupied HU 94 (78.3%)
Renter Occupied HU 12 ( 10.0%)
Vacant Housing Units 13 (10.8%)
Median Home Value $118,750
Average Home Value $213,830


Total Households 107
Average Household Size 2.44
Family Households 73
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 1.94% 1.27%
Households 2.11% 1.28%
Families 1.83% 1.07%
Median Household Income   1.07%
Per Capita Income   2.85%

Three Mile Bay, NY - Peer Comparisons by Rank and Percentile

The table below compares Three Mile Bay to the other 1,196 incorporated cities, towns and CDPs in New York 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 # 1142 5th
Population Density # 698 42nd
Diversity Index # 685 42nd
Median Household Income # 880 27th
Per Capita Income # 747 38th

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

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