There are 29 places in the state of Tennessee named "Oak Grove."

map.geojson

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {
        "county": "Campbell"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -84.145,
          36.25083
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Carter"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -82.25806,
          36.29806
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Chester"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -88.58167,
          35.40278
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Claiborne"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -83.4975,
          36.55361
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Clay"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -85.70333,
          36.59694
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Cumberland"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -85.03611,
          35.80417
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Dickson"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -87.48222,
          36.0075
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Franklin"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -86,
          35.25722
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Giles"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -87.11639,
          35.09556
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Hamilton"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -85.28167,
          35.02056
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Hardin"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -88.22972,
          35.27444
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Henderson"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -88.335,
          35.65778
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Henry"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -88.16806,
          36.38778
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Jefferson"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -83.35111,
          36.03861
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Knox"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -83.87833,
          36.04222
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Lauderdale"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -89.82139,
          35.63333
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Lewis"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -87.53889,
          35.45472
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Loudon"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -84.31528,
          35.80222
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Madison"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -88.89583,
          35.60556
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Marion"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -85.51611,
          35.12667
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Marion"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -85.68917,
          35.24083
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Monroe"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -84.31194,
          35.5775
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Overton"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -85.26167,
          36.37583
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Polk"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -84.61972,
          35.18111
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Shelby"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -89.81472,
          35.20444
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Sumner"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -86.38,
          36.57056
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Union"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -83.81889,
          36.35333
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Warren"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -85.9625,
          35.69972
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "county": "Washington"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -82.42472,
          36.41167
        ]
      }
    }
  ]
}