Nez Perce County is in Legislative District 7, the Second Judicial District, and the First Congressional District.
Please contact the County Clerk's office for further information to determine the precinct in which you reside or do an address search.
The following precinct totals are current as of May 7, 2012.
| Precinct Number | Description | Polling Place | Total Registered Voters |
| 1 | Lewiston #1 | Lewiston Community Center
1424 Main St., Lewiston | 626 |
| 2 | Lewiston #2 | Lewiston Community Center
734 Main St., Lewiston | 734 |
| 3 | Lewiston #3 | Trinity Lutheran Church
920 8th Ave., Lewiston | 901 |
| 4 | Lewiston #4 | Nazarene Church
1700 8th St., Lewiston | 699 |
| 5 | Lewiston #5 | Nez Perce Masonic Lodge #10
1122 18th Ave., Lewiston | 585 |
| 6 | Lewiston #6 | Lewiston Police Training Center
2419 16th Ave., Lewiston | 906 |
| 7 | Lewiston #7 | Nazarene Church
1700 8th St., Lewiston | 575 |
| 8 | Lewiston #8 | Valley Christian Center
3215 Echo Hills Dr., Lewiston | 1,004 |
| 9 | Lewiston #9 | Nez Perce Masonic Lodge #10
1122 18th Ave., Lewiston | 1,075 |
| 10 | Lewiston #10 | Nez Perce County Fair Building
13th & Burrell Ave., Lewiston | 533 |
| 11 | Lewiston #11 | Nez Perce County Fair Building
13th & Burrell Ave., Lewiston | 1,009 |
| 12 | Lewiston #12 | Nez Perce County Fair Building
13th & Burrell Ave., Lewiston | 411 |
| 13 | Lewiston #13 | Nez Perce County Fair Building
13th & Burrell Ave., Lewiston | 669 |
| 14 | Lewiston #14 | Nez Perce County Fair Building
13th & Burrell Ave., Lewiston | 725 |
| 15 | Lewiston #15 | Nez Perce County Fair Building
13th & Burrell Ave., Lewiston | 595 |
| 16 | Lewiston #16 | Nez Perce County Fair Building
13th & Burrell Ave., Lewiston | 693 |
| 17 | Lewiston #17 | Nez Perce County Fair Building
13th & Burrell Ave., Lewiston | 902 |
| 18 | Lewiston #18 | Nez Perce County Fair Building
13th & Burrell Ave., Lewiston | 628 |
| 19 | Lewiston #19 | Nez Perce County Fair Building
13th & Burrell Ave., Lewiston | 858 |
| 20 | Lewiston #20 | Nez Perce County Fair Building
13th & Burrell Ave., Lewiston | 898 |
| 21 | Lewiston #21 | Nez Perce County Fair Building
13th & Burrell Ave., Lewiston | 1,042 |
| 22 | Lewiston #22 | Nez Perce County Fair Building
13th & Burrell Ave., Lewiston | 986 |
| 23 | Rimrock | Mail Out – Nez Perce County Courthouse
| 96 |
| 24 | Foothills | Lewiston Community Center
1424 Main St., Lewiston | 730 |
| 25 | Tammany | Nez Perce County Fair Building
13th & Burrell Ave., Lewiston | 666 |
| 26 | Lapwai | Lapwai City Hall
315 Main Street, Lapwai | 1,053 |
| 27 | Leland | Cameron Emmanuel Lutheran Church
12633 Cameron Road, Kendrick | 232 |
| 28 | Lenore | Lenore Community Activity Center
37950 US Highway 12, Lenore | 373 |
| 29 | Peck | Peck Community Center
160 S Main Street, Peck | 241 |
| 30 | Gifford | Gifford Community Hall
34185 Church Road, Gifford | 171 |
| 31 | Culdesac | Culdesac Community Center
100 6th Street, Culdesac | 448 |
| 32 | Webb | Lapwai City Hall
315 Main Street, Lapwai | 202 |
| | | Total | 21,266 |