Town in Lake County, Indiana · 7.8 sq mi · 2,066 people per sq mi
16,052 people live in Griffith. The typical household earns $76,636, and the median resident is 37.5 years old.
2026 projection
From 16,528 in 2020
Poverty rate 7.13%
Men 37.6 · Women 37.4
1910–2026
16,052
2026 projection
2.9% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1910–2026
16,052
2026 projection
2.9% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 16,052 | -85 | 0.53% |
|---|---|---|---|
| 2025 | 16,137 | -64 | 0.40% |
| 2024 | 16,201 | -24 | 0.15% |
| 2023 | 16,225 | -87 | 0.53% |
| 2022 | 16,312 | -126 | 0.77% |
| 2021 | 16,438 | -90 | 0.54% |
| 2020 | 16,528 | -12 | 0.07% |
| 2019 | 16,540 | +40 | 0.24% |
| 2018 | 16,500 | -3 | 0.02% |
| 2017 | 16,503 | -64 | 0.39% |
Showing 10 of 27 years.
The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.
Griffith has a population change lower than Lake County, Indiana, and the U.S.
Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.
Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 163 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 14 residents
46% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 46% | 47% | 44% |
| Never married | 33% | 34% | 32% |
| Divorced | 13% | 12% | 14% |
| Widowed | 8% | 6% | 9% |
| Separated | <1% | <1% | 1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources