Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| First Congregational Church | Church | 197 | Clark | 39 23 29 N | 087 41 48 W |
| First Congregational Church | Church | 183 | Cook | 42 02 39 N | 087 40 42 W |
| First Congregational Church | Church | 193 | Cook | 41 53 22 N | 087 47 49 W |
| First Congregational Church | Church | 195 | Cook | 41 39 26 N | 087 40 54 W |
| First Congregational Church | Church | 186 | Cook | 42 04 41 N | 087 42 18 W |
| First Congregational Church | Church | 189 | Cook | 41 49 34 N | 087 51 04 W |
| First Congregational Church | Church | 186 | Cook | 41 46 42 N | 087 48 28 W |
| First Congregational Church | Church | 195 | Cook | 41 48 44 N | 087 52 07 W |
| First Congregational Church | Church | 204 | Cook | 41 48 46 N | 087 54 11 W |
| First Congregational Church | Church | 192 | Cook | 41 53 28 N | 087 50 23 W |
| First Congregational Church | Church | 186 | Cook | 41 49 49 N | 087 47 09 W |
| First Congregational Church | Church | 207 | DuPage | 41 48 06 N | 088 04 20 W |
| First Congregational Church | Church | 211 | DuPage | 41 53 39 N | 087 56 16 W |
| First Congregational Church | Church | 240 | DuPage | 41 53 30 N | 088 11 38 W |
| First Congregational Church | Church | 214 | DuPage | 41 46 31 N | 088 08 48 W |
| First Congregational Church | Church | 201 | Fulton | 40 33 28 N | 090 01 54 W |
| First Congregational Church | Church | 198 | Henry | 41 26 58 N | 090 09 22 W |
| First Congregational Church | Church | 253 | Henry | 41 14 18 N | 089 55 38 W |
| First Congregational Church | Church | 260 | Henry | 41 10 06 N | 090 02 43 W |
| First Congregational Church | Church | 222 | Kane | 41 53 22 N | 088 18 30 W |
| First Congregational Church | Church | 228 | Kane | 42 02 15 N | 088 16 50 W |
| First Congregational Church | Church | 232 | Kane | 42 05 52 N | 088 16 57 W |
| First Congregational Church | Church | 229 | Kane | 42 06 38 N | 088 17 13 W |
| First Congregational Church | Church | 230 | Knox | 40 48 14 N | 090 23 59 W |
| First Congregational Church | Church | 174 | La Salle | 41 19 58 N | 089 05 39 W |
| First Congregational Church | Church | 156 | La Salle | 41 19 47 N | 088 42 18 W |
| First Congregational Church | Church | 147 | La Salle | 41 20 57 N | 088 50 27 W |
| First Congregational Church | Church | 178 | La Salle | 41 19 40 N | 089 07 29 W |
| First Congregational Church | Church | 203 | Lake | 42 21 51 N | 087 50 01 W |
| First Congregational Church | Church | 194 | Livingston | 41 05 35 N | 088 25 56 W |
| First Congregational Church | Church | 165 | Madison | 38 44 32 N | 089 40 44 W |
| First Congregational Church | Church | 164 | Madison | 38 53 35 N | 090 10 37 W |
| First Congregational Church | Church | 275 | McHenry | 42 14 02 N | 088 20 17 W |
| First Congregational Church | Church | 226 | Stark | 41 05 45 N | 089 52 00 W |
| First Congregational Church | Church | 149 | Tazewell | 40 34 04 N | 089 38 42 W |
| First Congregational Church | Church | 159 | Tazewell | 40 29 38 N | 089 39 26 W |
| First Congregational Church | Church | 194 | Vermilion | 40 06 06 N | 087 38 27 W |
| First Congregational Church | Church | 192 | Whiteside | 41 40 14 N | 089 56 00 W |
| First Congregational Church | Church | 192 | Will | 41 35 17 N | 088 02 53 W |
| First Congregational Church | Church | 217 | Will | 41 28 10 N | 087 38 21 W |
| First Congregational Church | Church | 226 | Winnebago | 42 25 02 N | 089 00 19 W |
| First Congregational Church | Church | 245 | Winnebago | 42 18 39 N | 089 21 40 W |
| First Congregational Church (historical) | Church | 243 | Ford | 40 27 38 N | 088 06 00 W |
| First Congregational Church of Chicago | Church | 184 | Cook | 41 54 17 N | 087 43 16 W |
| First Congregational Church of Downers Grove | Church | 216 | DuPage | 41 47 37 N | 088 00 43 W |
| First Congregational Church of Forest Glen | Church | 187 | Cook | 41 58 45 N | 087 45 15 W |
| First Congregational Church of Glen Ellyn | Church | 227 | DuPage | 41 52 45 N | 088 03 52 W |
| First Congregational Church of La Moille | Church | 242 | Bureau | 41 31 52 N | 089 16 46 W |
| First Congregational Church of Rock Falls | Church | 199 | Whiteside | 41 46 49 N | 089 40 34 W |
| First Congregational Church of Sterling | Church | 202 | Whiteside | 41 47 20 N | 089 41 37 W |
| First Congregational United Church of Christ | Church | 135 | Cass | 40 00 57 N | 090 26 03 W |
| First Congregational United Church of Christ | Church | 260 | DeKalb | 41 56 13 N | 088 45 05 W |
| First Congregational United Church of Christ | Church | 213 | Stark | 41 03 49 N | 089 46 24 W |
| First Convenant Church | Church | 202 | Peoria | 40 43 53 N | 089 35 42 W |
| First Corinthian Baptist Church | Church | 183 | Cook | 41 45 26 N | 087 38 40 W |
| First Corinthian Baptist Church | Church | 200 | Lake | 42 19 52 N | 087 50 54 W |
| First Corinthians Baptist Church | Church | 185 | Cook | 41 41 15 N | 087 37 21 W |
| First Corinthians Missionary Baptist Church | Church | 184 | Cook | 41 52 09 N | 087 43 50 W |
| First Cumberland Presbyterian Church | Church | 179 | Cook | 41 44 58 N | 087 36 53 W |
| First Cumberland Presbyterian Church | Church | 177 | Logan | 40 09 01 N | 089 22 02 W |
| First Diocese Church of God in Christ | Church | 183 | Cook | 41 48 42 N | 087 37 29 W |
| First Edison Park United Church of Christ | Church | 198 | Cook | 42 00 08 N | 087 48 41 W |
| First English Evangelical Lutheran Church | Church | 237 | Stephenson | 42 17 43 N | 089 37 11 W |
| First English Lutheran Church | Church | 197 | Peoria | 40 43 31 N | 089 35 04 W |
| First Evangelical Church | Church | 193 | Cook | 41 53 27 N | 087 48 11 W |
| First Evangelical Church | Church | 216 | DuPage | 41 46 33 N | 088 08 46 W |
| First Evangelical Church | Church | 207 | Macon | 39 49 44 N | 088 56 25 W |
| First Evangelical Church (historical) | Church | 206 | DuPage | 41 57 19 N | 087 56 18 W |
| First Evangelical Covenant Church | Church | 239 | Winnebago | 42 16 11 N | 089 02 06 W |
| First Evangelical Free Church | Church | 183 | Cook | 41 58 40 N | 087 40 10 W |
| First Evangelical Free Church | Church | 267 | Winnebago | 42 17 44 N | 088 59 52 W |
| First Evangelical Lutheran Cemetery | Cemetery | 181 | Cook | 41 39 35 N | 087 43 28 W |
| First Evangelical Lutheran Church | Church | 134 | Cass | 40 00 53 N | 090 26 06 W |
| First Evangelical Lutheran Church | Church | 188 | Cook | 41 39 14 N | 087 40 59 W |
| First Evangelical Lutheran Church | Church | 201 | Macon | 39 50 18 N | 088 57 30 W |
| First Evangelical Lutheran Church | Church | 222 | Marshall | 41 02 18 N | 089 13 30 W |
| First Evangelical Lutheran School | School | 187 | Cook | 41 39 14 N | 087 41 00 W |
| First Evangelical Methodist Church | Church | 148 | Clay | 38 40 05 N | 088 28 40 W |
| First Evangelical United Brethren Church (historical) | Church | 134 | Madison | 38 51 59 N | 090 05 53 W |
| First Executive Retail Center Shopping Center | Locale | 257 | Lake | 42 11 23 N | 088 06 18 W |
| First Federated Church | Church | 223 | Adams | 40 01 51 N | 090 57 30 W |
| First Federated Church | Church | 202 | Peoria | 40 43 51 N | 089 36 15 W |
| First Free Methodist Church | Church | 186 | Peoria | 40 42 48 N | 089 36 14 W |
| First Free Methodist Church | Church | 238 | Stephenson | 42 17 36 N | 089 37 19 W |
| First Free Will Baptist Church | Church | 135 | Franklin | 38 00 29 N | 088 54 22 W |
| First Free Will Baptist Church | Church | 125 | St. Clair | 38 39 30 N | 090 09 53 W |
| First Freewill Baptist Church | Church | 178 | Henry | 41 28 06 N | 090 21 27 W |
| First Freewill Baptist Church | Church | 153 | Randolph | 38 07 36 N | 089 41 31 W |
| First General Assembly Church | Church | 184 | Cook | 41 41 51 N | 087 37 40 W |
| First General Baptist Church | Church | 213 | Christian | 39 23 22 N | 089 04 36 W |
| First General Baptist Church | Church | 184 | Cook | 41 54 45 N | 087 43 47 W |
| First General Baptist Church | Church | 141 | Jefferson | 38 18 27 N | 088 54 07 W |
| First General Baptist Church | Church | 188 | Macoupin | 39 00 13 N | 089 47 34 W |
| First General Baptist Church | Church | 151 | Marion | 38 32 23 N | 089 07 37 W |
| First General Baptist Church | Church | 162 | Marion | 38 37 06 N | 088 56 37 W |
| First General Baptist Church | Church | 237 | Ogle | 41 54 56 N | 089 04 31 W |
| First General Baptist Church | Church | 238 | Winnebago | 42 13 41 N | 089 03 55 W |
| First German Presbyterian Church | Church | 232 | Jo Daviess | 42 25 07 N | 090 26 02 W |
| First Gideon Baptist Church | Church | 182 | Cook | 41 49 21 N | 087 36 25 W |
| First Immanuel Lutheran Church | Church | 181 | Cook | 41 52 04 N | 087 40 00 W |
| First Independent Church | Church | 181 | Cook | 41 56 55 N | 087 39 12 W |
| First Korean Christian Church | Church | 182 | Cook | 41 57 08 N | 087 40 04 W |
| First Korean Church | Church | 224 | Winnebago | 42 20 22 N | 089 02 28 W |
| First Korean Presbyterian Church | Church | 198 | Cook | 41 58 43 N | 087 48 00 W |
| First Korean United Methodist Church | Church | 181 | Cook | 41 58 12 N | 087 42 54 W |
| First Lutheran Church | Church | 247 | Carroll | 42 05 45 N | 089 58 42 W |
| First Lutheran Church | Church | 187 | Cook | 41 50 08 N | 087 47 29 W |
| First Lutheran Church | Church | 268 | DeKalb | 41 55 57 N | 088 44 58 W |
| First Lutheran Church | Church | 235 | DeKalb | 42 05 29 N | 088 51 03 W |
| First Lutheran Church | Church | 244 | Ford | 40 27 23 N | 088 05 23 W |