Underweight among adults, BMI < 18.5 kg/m2 (crude estimate) in United States of America

United States of America: Underweight among adults, BMI < 18.5 kg/m2 (crude estimate) was 1.8% in 2024. ▼ Falling

Latest (2024)
1.8%
Change on year
up 1.4%
World rank
149th
of 198 countries
All-time high
3.7%
in 1980
All-time low
1.6%
in 2007
Years of data
45
1980–2024

Underweight among adults, BMI < 18.5 kg/m2 (crude estimate) in United States of America, 1980–2024

012341980200220241980: 3.71981: 3.51982: 3.31983: 3.21984: 31985: 2.91986: 2.71987: 2.61988: 2.51989: 2.41990: 2.21991: 2.11992: 21993: 21994: 1.91995: 1.81996: 1.81997: 1.71998: 1.71999: 1.72000: 1.72001: 1.72002: 1.72003: 1.62004: 1.62005: 1.62006: 1.62007: 1.62008: 1.62009: 1.62010: 1.62011: 1.62012: 1.62013: 1.62014: 1.72015: 1.72016: 1.72017: 1.72018: 1.72019: 1.72020: 1.72021: 1.72022: 1.72023: 1.82024: 1.8

Source: World Health Organization, Global Health Observatory.

Analysis

United States of America recorded 1.8% for underweight among adults, bmi < 18.5 kg/m2 (crude estimate) in 2024.

That represents a change of up 1.4% on the previous year and up 7.8% over ten years.

Over the whole period, underweight among adults, bmi < 18.5 kg/m2 (crude estimate) in United States of America peaked at 3.7% in 1980 and was at its lowest, 1.6%, in 2007.

That places United States of America 149th out of 198 countries with data for 2024, putting it in the bottom quarter.

The long-run direction has been consistently falling across the 45 years of available data.

Underweight among adults, BMI < 18.5 kg/m2 (crude estimate) in United States of America, year by year

Annual values for Underweight among adults, BMI < 18.5 kg/m2 (crude estimate) (%) in United States of America, 1980 to 2024.
Year Value Change
1980 3.7%
1981 3.5% -4.4%
1982 3.3% -4.5%
1983 3.2% -4.7%
1984 3.0% -4.8%
1985 2.9% -4.9%
1986 2.7% -5.0%
1987 2.6% -5.0%
1988 2.5% -4.9%
1989 2.4% -4.8%
1990 2.2% -4.8%
1991 2.1% -4.7%
1992 2.0% -4.4%
1993 2.0% -4.0%
1994 1.9% -3.6%
1995 1.8% -3.2%
1996 1.8% -2.7%
1997 1.7% -2.2%
1998 1.7% -1.6%
1999 1.7% -1.2%
2000 1.7% -0.9%
2001 1.7% -0.7%
2002 1.7% -0.6%
2003 1.6% -0.4%
2004 1.6% -0.4%
2005 1.6% -0.4%
2006 1.6% -0.3%
2007 1.6% -0.1%
2008 1.6% +0.1%
2009 1.6% +0.2%
2010 1.6% +0.2%
2011 1.6% +0.2%
2012 1.6% +0.2%
2013 1.6% +0.2%
2014 1.7% +0.2%
2015 1.7% +0.2%
2016 1.7% +0.2%
2017 1.7% +0.4%
2018 1.7% +0.6%
2019 1.7% +0.8%
2020 1.7% +0.8%
2021 1.7% +0.9%
2022 1.7% +1.1%
2023 1.8% +1.1%
2024 1.8% +1.4%

United States of America compared with similar countries

  • United States of America's 1.8% is below the median for high income countries, which is 1.9%, 94% of the median. (66 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
1980s 3.0% 2.4% 3.7% 10
1990s 1.9% 1.7% 2.2% 10
2000s 1.6% 1.6% 1.7% 10
2010s 1.7% 1.6% 1.7% 10
2020s 1.7% 1.7% 1.8% 5

Countries ranked near United States of America

  1. 146 Austria 1.9% compare
  2. 147 Belgium 1.9% compare
  3. 148 Uruguay 1.9% compare
  4. 150 North Macedonia 1.8% compare
  5. 151 Lithuania 1.8% compare
  6. 152 Egypt 1.7% compare

See the full ranking of 211 places →

More health data for United States of America

All data for United States of America →

Frequently asked questions

What is underweight among adults, bmi < 18.5 kg/m2 (crude estimate) in United States of America?
Underweight among adults, bmi < 18.5 kg/m2 (crude estimate) in United States of America was 1.8% in 2024, according to World Health Organization, Global Health Observatory.
What is the highest underweight among adults, bmi < 18.5 kg/m2 (crude estimate) recorded in United States of America?
The highest recorded value was 3.7% in 1980.
What is the lowest underweight among adults, bmi < 18.5 kg/m2 (crude estimate) recorded in United States of America?
The lowest recorded value was 1.6% in 2007.
How does United States of America rank for underweight among adults, bmi < 18.5 kg/m2 (crude estimate)?
United States of America ranks 149th out of 198 countries with data for 2024.
Is underweight among adults, bmi < 18.5 kg/m2 (crude estimate) rising or falling in United States of America?
Over the last ten years it is up 7.8%. The long-run trend across the full record is falling.
Where does this United States of America data come from?
The figures come from World Health Organization, Global Health Observatory, published as part of Underweight among adults, BMI < 18.5 kg/m2 (crude estimate) (%). Statizoid updates them automatically from the source API.

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Underweight among adults, BMI < 18.5 kg/m2 (crude estimate) in United States of America. Statizoid, drawing on World Health Organization, Global Health Observatory. Retrieved 13 September 2026, from https://health.statizoid.com/stat/underweight-among-adults-bmi-18-5-kg-m2-crude-estimate-percent/united-states/

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About this data

Indicator
Underweight among adults, BMI < 18.5 kg/m2 (crude estimate) (%)
Source
World Health Organization, Global Health Observatory
Licence
CC BY-NC-SA 3.0 IGO (WHO)
Coverage
211 places, 9,495 data points, 1980–2024
Last refreshed