List of counties Na-Pa

• Nassau County, NY (New York) - pop. 1,334,544
• Natchitoches Parish, LA (Louisiana) - pop. 39,080
• Natrona County, WY (Wyoming) - pop. 66,533
• Navajo County, AZ (Arizona) - pop. 97,470
• Navarro County, TX (Texas) - pop. 45,124
• Nelson County, KY (Kentucky) - pop. 37,477
• Nelson County, ND (North Dakota) - pop. 3,715
• Nelson County, VA (Virginia) - pop. 14,445
• Nemaha County, KS (Kansas) - pop. 10,717
• Nemaha County, NE (Nebraska) - pop. 7,576
• Neosho County, KS (Kansas) - pop. 16,997
• Neshoba County, MS (Mississippi) - pop. 28,684
• Ness County, KS (Kansas) - pop. 3,454
• Nevada County, AR (Arkansas) - pop. 9,955
• Nevada County, CA (California) - pop. 92,033
• New Castle County, DE (Delaware) - pop. 500,265
• New Hanover County, NC (North Carolina) - pop. 160,307
• New Haven County, CT (Connecticut) - pop. 824,008
• New Kent County, VA (Virginia) - pop. 13,462
• New London County, CT (Connecticut) - pop. 259,088
• New Madrid County, MO (Missouri) - pop. 19,760
• New York County, NY (New York) - pop. 1,537,195
• Newaygo County, MI (Michigan) - pop. 47,874
• Newberry County, SC (South Carolina) - pop. 36,108
• Newport County, RI (Rhode Island) - pop. 85,433
• Newport News city, VA (Virginia) - pop. 180,150
• Newton County, AR (Arkansas) - pop. 8,608
• Newton County, GA (Georgia) - pop. 62,001
• Newton County, IN (Indiana) - pop. 14,566
• Newton County, MO (Missouri) - pop. 52,636
• Newton County, MS (Mississippi) - pop. 21,838
• Newton County, TX (Texas) - pop. 15,072
• Nez Perce County, ID (Idaho) - pop. 37,410
• Niagara County, NY (New York) - pop. 219,846
• Nicholas County, KY (Kentucky) - pop. 6,813
• Nicholas County, WV (West Virginia) - pop. 26,562
• Nicollet County, MN (Minnesota) - pop. 29,771
• Niobrara County, WY (Wyoming) - pop. 2,407
• Noble County, IN (Indiana) - pop. 46,275
• Noble County, OH (Ohio) - pop. 14,058
• Noble County, OK (Oklahoma) - pop. 11,411
• Nobles County, MN (Minnesota) - pop. 20,832
• Nodaway County, MO (Missouri) - pop. 21,912
• Nolan County, TX (Texas) - pop. 15,802
• Nome Census Area, AK (Alaska) - pop. 9,196
• Norfolk County, MA (Massachusetts) - pop. 650,308
• Norfolk city, VA (Virginia) - pop. 234,403
• Norman County, MN (Minnesota) - pop. 7,442
• North Slope Borough, AK (Alaska) - pop. 7,385
• Northampton County, NC (North Carolina) - pop. 22,086
• Northampton County, PA (Pennsylvania) - pop. 267,066
• Northampton County, VA (Virginia) - pop. 13,093
• Northumberland County, PA (Pennsylvania) - pop. 94,556
• Northumberland County, VA (Virginia) - pop. 12,259
• Northwest Arctic Borough, AK (Alaska) - pop. 7,208
• Norton County, KS (Kansas) - pop. 5,953
• Norton city, VA (Virginia) - pop. 3,904
• Nottoway County, VA (Virginia) - pop. 15,725
• Nowata County, OK (Oklahoma) - pop. 10,569
• Noxubee County, MS (Mississippi) - pop. 12,548
• Nuckolls County, NE (Nebraska) - pop. 5,057
• Nueces County, TX (Texas) - pop. 313,645
• Nye County, NV (Nevada) - pop. 32,485
• O'Brien County, IA (Iowa) - pop. 15,102
• Oakland County, MI (Michigan) - pop. 1,194,156
• Obion County, TN (Tennessee) - pop. 32,450
• Ocean County, NJ (New Jersey) - pop. 510,916
• Oceana County, MI (Michigan) - pop. 26,873
• Ochiltree County, TX (Texas) - pop. 9,006
• Oconee County, GA (Georgia) - pop. 26,225
• Oconee County, SC (South Carolina) - pop. 66,215
• Oconto County, WI (Wisconsin) - pop. 35,634
• Ogemaw County, MI (Michigan) - pop. 21,645
• Ogle County, IL (Illinois) - pop. 51,032
• Oglethorpe County, GA (Georgia) - pop. 12,635
• Ohio County, IN (Indiana) - pop. 5,623
• Ohio County, KY (Kentucky) - pop. 22,916
• Ohio County, WV (West Virginia) - pop. 47,427
• Okaloosa County, FL (Florida) - pop. 170,498
• Okanogan County, WA (Washington) - pop. 39,564
• Okeechobee County, FL (Florida) - pop. 35,910
• Okfuskee County, OK (Oklahoma) - pop. 11,814
• Oklahoma County, OK (Oklahoma) - pop. 660,448
• Okmulgee County, OK (Oklahoma) - pop. 39,685
• Oktibbeha County, MS (Mississippi) - pop. 42,902
• Oldham County, KY (Kentucky) - pop. 46,178
• Oldham County, TX (Texas) - pop. 2,185
• Oliver County, ND (North Dakota) - pop. 2,065
• Olmsted County, MN (Minnesota) - pop. 124,277
• Oneida County, ID (Idaho) - pop. 4,125
• Oneida County, NY (New York) - pop. 235,469
• Oneida County, WI (Wisconsin) - pop. 36,776
• Onondaga County, NY (New York) - pop. 458,336
• Onslow County, NC (North Carolina) - pop. 150,355
• Ontario County, NY (New York) - pop. 100,224
• Ontonagon County, MI (Michigan) - pop. 7,818
• Orange County, CA (California) - pop. 2,846,289
• Orange County, FL (Florida) - pop. 896,344
• Orange County, IN (Indiana) - pop. 19,306
• Orange County, NC (North Carolina) - pop. 118,227
• Orange County, NY (New York) - pop. 341,367
• Orange County, TX (Texas) - pop. 84,966
• Orange County, VA (Virginia) - pop. 25,881
• Orange County, VT (Vermont) - pop. 28,226
• Orangeburg County, SC (South Carolina) - pop. 91,582
• Oregon County, MO (Missouri) - pop. 10,344
• Orleans County, NY (New York) - pop. 44,171
• Orleans County, VT (Vermont) - pop. 26,277
• Orleans Parish, LA (Louisiana) - pop. 484,674
• Osage County, KS (Kansas) - pop. 16,712
• Osage County, MO (Missouri) - pop. 13,062
• Osage County, OK (Oklahoma) - pop. 44,437
• Osborne County, KS (Kansas) - pop. 4,452
• Osceola County, FL (Florida) - pop. 172,493
• Osceola County, IA (Iowa) - pop. 7,003
• Osceola County, MI (Michigan) - pop. 23,197
• Oscoda County, MI (Michigan) - pop. 9,418
• Oswego County, NY (New York) - pop. 122,377
• Otero County, CO (Colorado) - pop. 20,311
• Otero County, NM (New Mexico) - pop. 62,298
• Otoe County, NE (Nebraska) - pop. 15,396
• Otsego County, MI (Michigan) - pop. 23,301
• Otsego County, NY (New York) - pop. 61,676
• Ottawa County, KS (Kansas) - pop. 6,163
• Ottawa County, MI (Michigan) - pop. 238,314
• Ottawa County, OH (Ohio) - pop. 40,985
• Ottawa County, OK (Oklahoma) - pop. 33,194
• Otter Tail County, MN (Minnesota) - pop. 57,159
• Ouachita County, AR (Arkansas) - pop. 28,790
• Ouachita Parish, LA (Louisiana) - pop. 147,250
• Ouray County, CO (Colorado) - pop. 3,742
• Outagamie County, WI (Wisconsin) - pop. 160,971
• Overton County, TN (Tennessee) - pop. 20,118
• Owen County, IN (Indiana) - pop. 21,786
• Owen County, KY (Kentucky) - pop. 10,547
• Owsley County, KY (Kentucky) - pop. 4,858
• Owyhee County, ID (Idaho) - pop. 10,644
• Oxford County, ME (Maine) - pop. 54,755
• Ozark County, MO (Missouri) - pop. 9,542
• Ozaukee County, WI (Wisconsin) - pop. 82,317
• Pacific County, WA (Washington) - pop. 20,984
• Page County, IA (Iowa) - pop. 16,976
• Page County, VA (Virginia) - pop. 23,177
• Palm Beach County, FL (Florida) - pop. 1,131,184
• Palo Alto County, IA (Iowa) - pop. 10,147
• Palo Pinto County, TX (Texas) - pop. 27,026
• Pamlico County, NC (North Carolina) - pop. 12,934
• Panola County, MS (Mississippi) - pop. 34,274
• Panola County, TX (Texas) - pop. 22,756
• Park County, CO (Colorado) - pop. 14,523
• Park County, MT (Montana) - pop. 15,694
• Park County, WY (Wyoming) - pop. 25,786
• Parke County, IN (Indiana) - pop. 17,241
• Parker County, TX (Texas) - pop. 88,495
• Parmer County, TX (Texas) - pop. 10,016
• Pasco County, FL (Florida) - pop. 344,765
• Pasquotank County, NC (North Carolina) - pop. 34,897