The following categories contain pages or media. Unused categories are not shown here. Also see wanted categories.

• Impoundments‏‎ (19 members)
• Indigenous Reserve Wells‏‎ (1,839 members)
• Indigenous Reserves‏‎ (54 members)
• Industrial buildings and structures on the National Register of Historic Places in Pennsylvania‏‎ (1 member)
• Infobox templates‏‎ (1 member)
• Inline cleanup templates‏‎ (1 member)
• Intricate templates‏‎ (1 member)
• Italic multilingual support templates‏‎ (1 member)
• Kansas Operators‏‎ (19,748 members)
• Kansas Wells‏‎ (426,577 members)
• Kansas counties‏‎ (105 members)
• Kentucky Wells‏‎ (13,753 members)
• Kentucky counties‏‎ (88 members)
• Landowners Guide‏‎ (11 members)
• Lang-x templates‏‎ (1 member)
• Lua-based templates‏‎ (3 members)
• Lua metamodules‏‎ (1 member)
• MSIE font fix templates‏‎ (1 member)
• Manitoba City‏‎ (1 member)
• Manitoba Divisions‏‎ (17 members)
• Manitoba Indian Reserves‏‎ (5 members)
• Manitoba Municipality‏‎ (33 members)
• Manitoba Operators‏‎ (603 members)
• Manitoba Rural Municipality‏‎ (34 members)
• Manitoba Subdivisions‏‎ (81 members)
• Manitoba Town‏‎ (2 members)
• Manitoba Unorganized‏‎ (3 members)
• Manitoba Wells‏‎ (10,474 members)
• Mason Inman‏‎ (3 members)
• Mississippi Operators‏‎ (194 members)
• Mississippi Wells‏‎ (5,465 members)
• Mississippi counties‏‎ (39 members)
• Modules subject to page protection‏‎ (2 members)
• Montana Operators‏‎ (3,398 members)
• Montana Wells‏‎ (41,617 members)
• Montana counties‏‎ (51 members)
• Municipalities‏‎ (19,438 members)
• Namespace manipulation templates‏‎ (1 member)
• National Historic Landmarks in Pennsylvania‏‎ (1 member)
• Native American multilingual support templates‏‎ (1 member)
• Natural resources agencies in the United States‏‎ (1 member)
• New Mexico Operators‏‎ (536 members)
• New Mexico Wells‏‎ (55,711 members)
• New Mexico counties‏‎ (14 members)
• New York Municipalities‏‎ (595 members)
• New York Operators‏‎ (2,340 members)
• New York Wells‏‎ (46,401 members)
• New York counties‏‎ (60 members)
• Non-profit organizations based in Pennsylvania‏‎ (1 member)
• Non-profit organizations based in the United States‏‎ (1 member)