St. Mary Parish, Louisiana property tax
The median homeowner in St. Mary Parish, Louisiana pays $515 a year in property tax on a home worth $128,000, an effective rate of 0.40%. The national effective rate is 0.98%.
What the rate means here
At 0.40%, St. Mary Parish taxes property more lightly than the national 0.98%. The bill works out at $515 a year. Low-rate counties usually have another revenue source doing the work, whether that is a state funding formula, sales tax or severance revenue from extraction.
It ranks #35 of 63 Louisiana counties by effective rate, against a statewide 0.55%, and #2,653 nationally. The state runs from 0.82% in Orleans Parish down to 0.15% in East Feliciana Parish.
The median home costs 2.47 times the median household income of $51,768, against 3.86 nationally, which is a comfortable ratio by American standards. 69.84% of occupied homes are owned rather than rented, and cheap housing relative to income is usually why. With 48,455 residents, the sample behind these medians is small, and the survey's own margins of error are correspondingly wider.
The rate is derived rather than quoted. How and why.
What that costs at different home values
Arithmetic at the county effective rate, before any exemption or assessment cap.
Housing and income
| St. Mary Parish | Louisiana | United States | |
|---|---|---|---|
| Effective property tax | 0.40% | 0.55% | 0.98% |
| Median tax bill | $515 | $1,146 | $2,969 |
| Median home value | $128,000 | $208,700 | $303,400 |
| Median gross rent | $839 | $1,038 | $1,348 |
| Median household income | $51,768 | $60,023 | $78,538 |
| Home price to income | 2.47× | 3.48× | 3.86× |
| Rent as share of income | 19.45% | 20.75% | 20.6% |
| Owner-occupied | 69.84% | 67.32% | 65.02% |
Source: U.S. Census Bureau, American Community Survey 2023 five-year estimates. Population 48,455.
Nearby counties of similar size
| County | Rate | Median bill | Home value |
|---|---|---|---|
| Lincoln Parish | 0.50% | $975 | $195,500 |
| Vernon Parish | 0.54% | $776 | $143,500 |
| St. Martin Parish | 0.40% | $610 | $151,000 |
| Washington Parish | 0.35% | $488 | $139,400 |
| St. Charles Parish | 0.57% | $1,475 | $256,800 |
St. Mary Parish property tax: common questions
What is the property tax rate in St. Mary Parish, Louisiana?
The effective rate is 0.40% of home value, from a median tax bill of $515 against a median home value of $128,000. That is 0.58 points below the national 0.98%.
How much is property tax on a $400,000 home in St. Mary Parish?
Roughly $1,600 a year at the county effective rate of 0.40%.
Is St. Mary Parish expensive compared with the rest of Louisiana?
It ranks #35 of 63 Louisiana counties by effective property tax rate, and #2653 of 2,826 nationally. That is 0.15 points below the Louisiana average of 0.55%.
What does housing cost in St. Mary Parish?
The median home is worth $128,000 and median gross rent is $839 a month. Median household income is $51,768, which puts the home at 2.47 times annual income and rent at 19.45% of it.