- Mabank
- MacArthur
- Madison
- MADISON CO.
- Madisonville
- Magan Escamilla
- Magnolia
- Magnolia West
- Malakoff
- Manor
- Mansfield
- Manvel
- Marble Falls
- Marion
- MARION CO.
- Marion-Cass SWCD
- Marlin
- Marshall
- Mart
- Martin - Laredo
- MARTIN CO.
- Martins Mill
- Martinsville
- Mary Carroll Corpus Christi
- Mason
- MASON CO.
- Mason County SWCD
- Matagorda
- MATAGORDA CO.
- Matagorda County Fair
- Matagorda County SWCD
- Mathis
- Maud
- MAVERICK CO.
- Maverick County SWCD
- May
- Mayde Creek
- Maypearl
- McAllen
- McAllen Memorial
- McClellan Creek SWCD
- MCCULLOCH CO.
- McCulloch SWCD
- McDade
- McGregor
- McKinney
- McKinney Boyd
- McLean
- MCLENNAN CO.
- McLennan Community College
- McLennan County SWCD
- McLeod
- MCMULLEN CO.
- McMullen County SWCD
- McNeil
- Meadow
- Medina
- MEDINA CO.
- Medina Valley
- Medina Valley SWCD
- Memphis
- Menard
- MENARD CO.
- Menard County SWCD
- Mercedes
- Meridian
- Merkel
- Methodist Home Boys Ranch
- Mexia
- Miami
- Middle Clear Fork SWCD
- Middle Concho SWCD
- Midland
- MIDLAND CO.
- Midland Legacy
- Midland SWCD
- Midlothian
- Midway
- MILAM CO.
- Milano
- Mildred
- Miles
- Milford
- Miller Career & Technology Center
- Miller Grove
- Miller-Brazos SWCD
- MILLS CO.
- Mills County SWCD
- Millsap
- Mineola
- Mineral Wells
- Mission
- MITCHELL CO.
- Mitchell SWCD
- MONTAGUE CO.
- Montague County USDA
- Monte Alto
- Monte Mucho SWCD
- Monterey
- Montgomery
- Montgomery Co Fair Assn
- MONTGOMERY CO.
- Montgomery County SWCD
- Moody
- MOORE CO.
- Moore County SWCD
- Moran
- Morgan
- MORRIS CO.
- Morton
- Morton Ranch
- MOTLEY CO.
- Motley County
- Moulton
- Mount Calm
- Mount Enterprise
- Mount Pleasant
- Mount Vernon
- Muenster
- Muleshoe
- Mullin
- Mumford
- Munday
- Mustang SWCD