| Isle La Motte - Property Tax Rates | FIPS Code=13015 |
| Year | Effective Tax Rate |
| 1970 | 1.47 |
| 1972 | 1.85 |
| 1974 | 1.78 |
| 1978 | 1.59 |
| Year | Effective Tax Rate | Municipal Tax Rate | School Tax Rate | |
| 1980 | 1.40 | 0.29 | 1.11 | |
| 1982 | 1.01 | 0.22 | 0.79 | |
| 1983 | 0.97 | Not Available | Not Available | |
| 1985 | 0.98 | Not Available | Not Available | |
| 1987 | 1.59 | Not Available | Not Available | |
| 1988 | 1.13 | 0.43 | 0.70 | |
| 1989 | 1.06 | 0.34 | 0.72 |
| Year | Effective Tax Rate | Municipal Tax Rate | School Tax Rate |
| 1990 | 0.88 | 0.31 | 0.57 |
| 1991 | 0.82 | 0.29 | 0.53 |
| 1993 | 0.55 | 0.03 | 0.52 |
| 1995 | 0.80 | 0.24 | 0.56 |
| 1997 | 1.26 | 0.36 | 0.90 |