Fish Lake, Indiana Demographics & Population 2026

A note before these figures: with a population of 684, Fish Lake's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Fish Lake is a small community located in Indiana, within LaPorte County. The total population is 684. It ranks as the 439th most populous out of 967 Census-designated places in Indiana.

Age Demographics

The median age in Fish Lake is 64.3 years. This is 69% higher than the state median of 38.1 years. Only 1.6% of residents are under 18, indicating fewer families with children. 16.1% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Fish Lake is $80,976. This is 13% higher than the state median of $71,957. It is also about the same as the national median of $80,734. The poverty rate stands at 7.9%. This is 36% lower than the state poverty rate of 12.3%. The unemployment rate is 15.0%. This is 251% higher than the state rate of 4.3%. The median home value is $190,800. Housing costs are 13% lower than the state median of $218,200. With a home-value-to-income ratio of just 2.4x, Fish Lake is one of the most affordable housing markets in the area. 96.7% of occupied housing units are owner-occupied. This homeownership rate is 37% higher than the state average of 70.5%.

Race & Ethnicity

The largest racial or ethnic group in Fish Lake is White (non-Hispanic), making up 68.3% of the population. Hispanic or Latino residents account for 22.5%. The Hispanic or Latino population is significantly higher than the state average (22.5% vs 8.6%).

Education

31.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 7% higher than the state rate of 29.5%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 90.4%.

Data Sources & Methodology

All demographic data for Fish Lake, Indiana is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Indiana state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 967 Census-designated places in Indiana. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.