1850 Atlas
| Name | What | Place | Pop | Other |
| Naaman's Creek | PO | New Castle Co, DE | ||
| Naausay | PO | Kendall Co, IL | ||
| Nacogdoches | PV, CH | Nacogdoches Co, TX | seat of justice | |
| Nacooche | PO | Habersham Co, GA | ||
| Naglesville | PO | Monroe Co, PA | ||
| Nahant | PV | Lynn twp, Essex Co, MA | a summer resort & residence on rock bound peninsula several miles into MA bay, joined to main land by smooth beach of compact sand | |
| Nahunta | PO | Wayne Co, NC | ||
| Nail Facoty | PO | Gaston Co, NC | ||
| Nairn | PO | Scioto Co, OH | ||
| Namahkum | PO | Marquette Co, WI | ||
| Namozine | PO | Amelia Co, VA | ||
| Nanafalia | PO | Marengo Co, AL | water by Tombigbee river | |
| Nancemont | PO | Cass Co, IL | ||
| Nanjemoy | PV | Charles Co, MD | water by Nanjemoy bay | |
| Nankin | PV | Orange twp, Ashland Co, OH | ||
| Nankin | PT | Wayne Co, MI | 1,617 | water by tributaries of Rouge river |
| Nanticoke | PO | Luzerne Co, PA | ||
| Nanticoke | PT | Broome Co, NY | 576 | water by Nanticoke creek |
| Nanticoke hundred | not listed | Sussex Co, DE | 1,546 | |
| Nanticoke Springs | PV | Nanticoke twp, Broome Co, NY | site of a salubrious sulphur spring | |
| Nantucket | PV, CH | Nantucket Co, MA | 8,454 | seat of justice, water by Nantucket bay (actually an island) |
| Nanuet | PO | Rockland Co, NY | ||
| Napa | PT, CH | Napa Co, CA | seat of justice | |
| Napanock | PO | Ulster Co, NY | ||
| Napier | T | Bedford Co, PA | 2,051 | |
| Napierville | PV | Du Page Co, IL | water by west fork of De Page river | |
| Naples | PT | Cumberland Co, ME | 1,025 | water by Crooked & Saugo rivers |
| Naples | PT | Ontario Co, NY | 2,376 | water by inlets of Canandaigua & Honeoye lakes |
| Naples | PV | Scott Co, IL | water by Illinois river | |
| Napoleon | PT | Jackson Co, MI | 1,208 | |
| Napoleon | PV | Gallatin Co, KY | ||
| Napoleon | PV | Ripley Co, IN | ||
| Napoleon | PV | Desha Co, AR | 243 | situated at the confluence of the Arkansas & Mississippi rivers |
| Napoleon | PT, CH | Henry Co, OH | 566 | seat of justice, water by Maumee river |
| Napoli | PT | Cattaraugus Co, NY | 1,233 | water by Coldspring creek |
| Naponoch | V | Wawarsing twp, Ulster Co, NY | water by Rondout creek | |
| Narraganset | PO | Washington Co, RI | ||
| Narraguagus | PV | Washington Co, ME | water by Narragaugus bay | |
| Narrows | PO | Jefferson Co, NY | ||
| Narrows | PO | Daviess Co, KY | ||
| Narrows | PO | Pike Co, PA | ||
| Narrows | T | Macon Co, MO | ||
| Narrows | PO | Noddaway Co, MO | ||
| Narrowsburgh | PO | Lumberland twp, Sullivan Co, NY | ||
| Narrow Valley | PO | Benton Co, AL | ||
| Nashport | PV | Licking twp, Muskingum Co, OH | situated on the Ohio & Erie canals | |
| Nash's Ford | PO | Russell Co, VA | ||
| Nashua | PT | Hillsborough Co, NH | 5,820 | water by Merrimac & Nashua rivers, noted for manufactures of cotton |
| Nashville | City | Davidson Co, TN | 9,125 | seat of justice, water by Cumberland river |
| Nashville | PO | Hanover twp, Chautauque Co, NY | ||
| Nashville | PV | Washington twp, Holmes Co, OH | ||
| Nashville | PV, CH | Nash Co, NC | seat of justice, water by Peach Tree creek | |
| Nashville | PV | Lowndes Co, MS | water by Tombigbee river | |
| Nashville | PV, CH | Washington Co, IL | water by Little Crooked creek | |
| Nashville | PV, CH | Brown Co, IN | water by Salt creek | |
| Nashville | PV | Boone Co, MO | water by Missouri river | |
| Nashville | PO | Milan Co, TX | ||
| Nasonville | PO | Providence Co, RI | ||
| Nassau | PT | Rensselaer Co, NY | 3,261 | water by Kinderhook creek |
| Natchez | City | Adams Co, MS | 4,434 | seat of justice, on Mississippi river |
| Natchitoches | PV, CH | Natchitoches parish, LA | seat of justice, water by Red river | |
| Nathan's Creek | PO | Ashe Co, NC | ||
| Nathansville | PV | Conecuh Co, AL | ||
| Natick | PT | Middlesex Co, MA | 2,744 | water by Charles river |
| Natick | PV | Warwick twp, Kent Co, RI | water by Patuxet river | |
| Nation Ford | PO | York dist, SC | ||
| Natural Bridge | PO | Rockbridge Co, VA | situated on Cedar creek over which is a natural bridge 215 ft above the water | |
| Natural Bridge | PV | Wilna twp, Jefferson Co, NY | water by Indian river, over which is a natural bridge | |
| Natural Dam | PO | Crawford Co, AR | ||
| Natural Grove | PO | Williamsburgh dist, SC | ||
| Naugatuck | PV | Waterbury twp, New Haven Co, CT | water by Naugatuck river | |
| Nauvoo | PO | Tioga Co, PA | ||
| Nauvoo | PO | Hancock Co, IL | water by Mississippi river, former site of Nauvoo Temple of the Morman sect | |
| Navarino | PO | Onondaga twp, Onondaga Co, NY | ||
| Navarre | PO | Starke Co, OH | ||
| Navarro | PO | Leon Co, TX | ||
| Naylor's Store | PO | St Charles Co, MO | ||
| Nazareth | PO | Northampton Co, VA | ||
| Neashoe | PV, CH | Newton Co, MO | seat of justice | |
| Neatsville | PV | Adair Co, KY | ||
| Neaves | T | Darke Co, OH | 888 | |
| Nebo | PO | Hopkins Co, KY | ||
| Nebo | PO | Jefferson Co, OH | ||
| Nebraska | PO | Crawford Co, IN | ||
| Necot | PO | Linn Co, IA | ||
| Needham | PT | Norfolk Co, MA | 1,944 | water by Charles river |
| Neel's Creek | PO | Jefferson Co, IN | ||
| Neelysville | PO | Morgan Co, OH | ||
| Neenah | PO | Winnebago Co, WI | ||
| Neersville | PO | Loudoun Co, VA | ||
| Neffsville | PV | Mankeim twp, Lancaster Co, PA | ||
| Negro Foot | PO | Hanover Co, VA | ||
| Nehamico | PO | Russell Co, AK | ||
| Neill's Creek | PO | Cumberland Co, NC | ||
| Neckama | PO | Winnebago Co, WI | ||
| Nelson | PT | Cheshire Co, NH | 750 | water by Connecticut & Merrimac rivers |
| Nelson | PT | Madison Co, NY | 1,965 | water by Chittenango creek |
| Nelson | PO | Tioga Co, PA | ||
| Nelson | PT | Portage Co, OH | 1,383 | |
| Nelsonport | PO | Potter Co, PA | ||
| Nelson's Landing | PO | Chippewa Co, WI | ||
| Nelsonville | PV | York twp, Athens Co, OH | water by Hockhocking river | |
| Neosho | PO | Dodge Co, WI | ||
| Neosho | PV, CH | Newton Co, MO | water by Spring Creek | |
| Neperan | PO | Westchester Co, NY | ||
| Nepeuskun | PO | Winnebago Co, WI | ||
| Neponset Village | PV | Dorchester twp, Norfolk Co, MA | water by Neponset river | |
| Neptune | PO | Mercer Co, OH | ||
| Nero | PO | Henderson Co, TN | ||
| Neshanock | T | Mercer Co, PA | ||
| Neshcopeck | PT | Luzerne Co, PA | 920 | water by Big & Little Wapwallopen & Nescopeck creeks |
| Neshkoro | PO | Marquette Co, WI | ||
| Nesquehoning | PO | Carbon Co, PA | ||
| Nestorville | PO | Barbour Co, VA | ||
| Netherland | PO | Overton Co, TN | ||
| Nether Providence | PT | Delaware Co, PA | 1,494 | water by Ridley & Crum creeks |
| Nettle Carier | PO | Overton Co, TN | ||
| Nettle Creek | T | Randolph Co, IN | 468 | |
| Nettle Lake | PO | Williams Co, OH | ||
| Nevada City | PT | Nevada Co, CA | seat of justice | |
| Neversink | PT | Sullivan Co, NY | 2,281 | water by Neversink river & Rondout creek |
| Neville | PV | Washington twp, Clermont Co, OH | water by Ohio river | |
| Nevin | PO | Highland Co, OH |