| Lacy | Moses | Monmouth City | clerk | rep | _ | from Ohio |
| Lacy | John | Monmouth City | laborer | rep | _ | from Pennsylvania |
| Laferty | Mrs. Sarah | Monmouth City | widow | _ | _ | from New York |
| Lahnn | R.L. | Monmouth City | cigar manufacturer | rep | _ | from Germany |
| Lambert | Decatur | Monmouth City | laborer | rep | _ | from New York |
| Langdon | Mrs. S.M. | Monmouth City | widow | _ | U.P. | from England |
| Layman | T.G. | Monmouth City | agent | dem | _ | from Kentucky |
| Lee | Mrs. M.J. | Monmouth City | _ | _ | U.P. | from Pennsylvania |
| Lee | Mrs. Susan | Monmouth City | _ | _ | _ | _ |
| Lee | J.R. | Monmouth City | merchant | rep | _ | from Ohio |
| Leeper | John | Monmouth City | blacksmith | rep | Presb | from Kentucky |
| Leeper | Jamison | Monmouth City | Farmer; Sec. 35; Monmouth; born in Union Co., Ind., Dem; Chris; owns 300 acres of land, val. At $18,000; has held offices of Supervisor of Town and School Director for three years;; married Eliza Sankey, Jan., 1830, from Butler Co., Ohio. | _ | _ | born in Union Co. Ind |
| Leighty | Jacob | Monmouth City | harness maker | rep | _ | born Illinois |
| Leins | Adam | Monmouth City | merchant tailor | rep | _ | from Germany |
| Lemon | Wm. | Monmouth City | employee | dem | Meth | from West Virginia |
| Liby | Isaac | Monmouth City | laborer | rep | _ | from Pennsylvania |
| Liby | Samuel | Monmouth City | groceryman | Ind; | _ | from Penn |
| Lillgadhall | Amel | Monmouth City | employed in Weir Plow Works | _ | _ | from Sweden |
| Lincoln | F.R. | Monmouth City | physician and teacher | rep | Presb | from Massachusetts |
| Lindsey | James | Monmouth City | painter | rep | _ | born in Illinois |
| Lindstrum | S.J. | Monmouth City | tailer | rep | Luth | from Sweden |
| Little | James R. | Monmouth City | foreman Weir Plow Works; | dem | Presb | born in Illinois |
| Little | Leoman | Monmouth City | employed by Weir Plow Co. | dem | _ | born in Illinois |
| Little | S.A. | Monmouth City | carpenter | rep | _ | born in Illinois |
| Lofgren | Oscar | Monmouth City | moulder | rep | _ | from Sweden |
| Logan | John M. | Monmouth City | carpenter | rep | U.P. | from Pennsylvania |
| Lorimer | John | Monmouth City | auctioneer | rep | _ | from Ohio |
| Lorimer | Samuel | Monmouth City | clerk | rep | _ | from Ohio |
| Loveland | Mrs. H.G. | Monmouth City | _ | _ | _ | from Massachusetts |
| Lucas | Charles | Monmouth City | laborer | dem | _ | born Illinois |
| Lucas | C. | Monmouth City | _ | dem | _ | from Kentucky |
| Lucas | Matthew | Monmouth City | employed by Weir Plow Co. | rep | _ | from New Jersey |
| Luft | A. | Monmouth City | music teacher | _ | Chris | from Germany |
| Lundeen | A.F. | Monmouth City | stone mason | _ | _ | from Sweden |
| Lundgren | Charles | Monmouth City | shoemaker | rep | Luth | from Sweden |
| Lusk | Wilson | Monmouth City | jeweller | dem | _ | from Penn. |
| Lusk | L.M. | Monmouth City | printer | dem | _ | from Penn |