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Weighted Populations

Each fiscal year, CMAQ funds are apportioned according to the weighted populations of nonattainment and maintenance areas designated and classified by the EPA. Calculated according to a statutory formula in transportation legislation, the weighted populations are provided here.

CMAQ Weighted Populations By State, Nonattainment Area, and County

• FY 2010
• FY 2009
• FY 2008
• FY 2007
• FY 2006 (The same weighted populations were used to calculate both the 2005 and 2006 CMAQ apportionments.)
• FY 2004
• FY 2003
• FY 2002
• FY 2001 (PDF - 52 KB)

CMAQ Annual Reports

• Ninth Year (FY 2000) - Memo and report
  Data by state, by project type denoting air quality effect
• Eighth Year (FY 1999) - Memo and report
  Data by state, by project type denoting air quality effect
• FY 1992 - 1998 Reports