| City: | Leonville, Louisiana |
| Parish: | Saint Landry Parish |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 8:58:40 AM |
| Population: | 336 [See All] |
| Area Code: | 337 |
| Classification: | PO Box |
| Coordinates: | 30.4704, -91.9786 |
| Land Area: | 0.667 sq mi |
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The ZIP code covers 0.667 square miles of Saint Landry Parish, small but serving a purpose larger than its footprint suggests. Two rural carrier routes provide street delivery to some addresses, but the overwhelming preference for PO Boxes reflects the reality of rural Louisiana mail service. Highway 31 runs through the area, accounting for two of the seven street delivery records tracked in the postal database. The remaining street addresses scatter across Melancon Drive, Mistric Street, St Jules Street, and Stelly Street.
Leonville's demographics show a close-knit community. The median age of 49.4 years suggests an established population, while the ratio of 2.5 people per household falls within typical family ranges. Of 160 total housing units, 134 are occupied, with 26 sitting vacant. The median household income of $44,142 sits below Louisiana's state average, and median home values reach $113,700. About 22.1% of residents live below the poverty line, a figure that shapes how mail service functions as necessary infrastructure rather than mere convenience.
The post office itself maintains one named facility in the postal database: simply "POSTMASTER." This reflects the straightforward nature of mail operations here. There's no city carrier delivery, only the rural routes that reach into the farmland beyond the post office walls. The high PO Box adoption rate doesn't indicate a failure of service but rather reveals how rural communities organize around central gathering points. When your neighbors live a half-mile down a gravel road, coming into town to collect mail becomes part of the weekly routine. The post office serves as more than a mail facility; it's where paths cross and community happens.
Highway 31 dominates the limited street delivery network, while the French-influenced street names (Melancon, St Jules) reflect the Cajun heritage of Saint Landry Parish.
ZIP Code 70551 has 336 residents and 134 households (average 2.51 persons per household). The median age is 49.4 years, significantly older than the state (38.1) and significantly older than the nation (38.8). The gender split is 42.9% male and 57.1% female, which is lower than the national male share (49.1%), making this a female-majority area. Largest groups are White (50.6%, much lower than the national average of 61.6%) and Black or African American (47.0%, much higher than the state average of 31.4% and well above the national average of 12.4%); Hispanic or Latino residents make up 0.9%, which is much lower than the national average (18.7%), and Black or African American share is much higher than both the state (31.4%) and national averages (12.4%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 336Source: Census DHC |
| 2024 ACS Population Estimate: | 570Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 503.7 people per sq mile |
| Average Income: | $44,924Source: Census ACS |
| Households: | 134Source: Census DHC |
| Average House Value: | $666,666,666Source: Census ACS |
| Persons Per Household: | 2.51Source: Census DHC |
| Average Family Size: | 3.94Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 731 | 728 | 1,030 | 570 |
| Decennial Census | 0 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 336 | -- | -- | -- | -- |
Median Age: 49.4
Male Median Age: 50.5
Female Median Age: 47.3
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 9 | 3 | 7 | 9 | 3 | 7 | 0 | 16 | 9 | 6 | 16 | 12 | 11 | 16 | 14 | 3 | 2 | 1 |
| Female | 10 | 8 | 14 | 12 | 12 | 10 | 7 | 11 | 6 | 13 | 17 | 15 | 22 | 13 | 9 | 7 | 5 | 1 |
| Total | 19 | 11 | 21 | 21 | 15 | 17 | 7 | 27 | 15 | 19 | 33 | 27 | 33 | 29 | 23 | 10 | 7 | 2 |
| White: | 170 | 50.60% |
| Black: | 158 | 47.02% |
| Hispanic:* | 3 | 0.89% |
| Asian: | 0 | 0% |
| American Indian: | 1 | 0.30% |
| Hawaiian: | 0 | 0% |
| Other: | 4 | 1.19% |
| Total: | 336 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 144 | 42.86% | 50.5 years |
| Females: | 192 | 57.14% | 47.3 years |
| Total: | 336 | 100% | 49.4 years |
| Native, born in the United States: | 570 | 100.00% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0.00% |
| Foreign born, naturalized U.S. citizen: | 0 | 0.00% |
| Foreign born, not a U.S. citizen: | 0 | 0.00% |
| Total Population: | 570 | 100% |
| Total Native Population: | 570 | 100.00% |
| Total Foreign-born Population: | 0 | 0.00% |
In 2024, the Median household income is $44,924, which is well under the national median ($80,734), and above its 2019 pre-pandemic level by $44,924. Family households earn a median of $44,830 versus $0 for nonfamily households (a difference of $44,830). By gender, male median income is $43,561 and female is $40,417, which is considerably lower than the national female median ($55,274), with a current gap of $3,144 that has widened from 2011 to 2024. The labor-force participation rate is 41.8%, which is far less than the national rate (63.5%). The unemployment rate is 0.0%, which is considerably lower than the national rate (5.2%). The largest occupation group is Natural resources (48.9%).
Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $36,130 | $39,232 | $44,142 | $44,924 |
| Median Family Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $36,401 | $39,473 | $44,347 | $44,830 |
| Median NonFamily Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Male Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $36,219 | $39,021 | $40,580 | $43,561 |
| Median Female Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $31,875 | $0 | $26,322 | $40,417 |
| Employed: | 135 | 41.80% |
| Unemployed: | 0 | 0.00% |
| Not In Labor Force: | 188 | 58.20% |
| Total: | 323 | 100% |
| Management, business, science, and arts: | 16 | 11.85% |
| Service: | 11 | 8.15% |
| Sales and Office: | 8 | 5.93% |
| Natural resources, construction, and maintenance: | 66 | 48.89% |
| Production, transportation, and material moving: | 34 | 25.19% |
| Total Civilian Employed Population: | 135 | 100% |
In 2024, the median home value is $0, which is much lower than the national median ($332,700), and above its 2019 pre-pandemic level by $0. The median gross rent is $0, which is well under the national median ($1,413), and above its 2019 pre-pandemic level by $0. Of occupied housing, owners make up 97.10% (5.22% with a mortgage, 94.78% free-and-clear) and renters 2.90% - making this ZIP Code under national rental averages. The vacancy rate is 14.81%, which is far higher than the national rate (10.12%).
Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $113,700 | $0 |
| Less than $500: | 0 | 0.00% |
| $500 to $999: | 0 | 0.00% |
| $1,000 to $1,499: | 0 | 0.00% |
| $1,500 to $1,999: | 0 | 0.00% |
| $2,000 to $2,499: | 0 | 0.00% |
| $2,500 to $2,999: | 0 | 0.00% |
| $3,000 or more: | 0 | 0.00% |
| No Rent: | 4 | 100.00% |
| Total: | 4 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Owner Occupied (with mortgage): | 7 | 5.07% |
| Owner Occupied (free and clear, no mortgage): | 127 | 92.03% |
| Renter Occupied: | 4 | 2.90% |
| Total Occupied Housing Units: | 138 | 100% |
| Occupied Housing Units: | 138 | 85.19% |
| Vacant Housing Units (not graphed): | 24 | 14.81% |
| Total Housing Units: | 162 | 100% |
| Single-Family Units: | 68 | 41.98% |
| Multi-Family Units: | 0 | 0.00% |
| Other Units: | 94 | 58.02% |
| Total Housing Units: | 162 | 100% |
In 2024, 2.80% of adults (25+) have a bachelor's degree or higher, which is far lower than the national rate (35.70%). High school or higher is 71.20%, which is comparable to the national rate (89.60%). The uninsured rate is 1.20%, which is far lower than the national rate (8.40%). Private coverage is 47.90%, which is falls below the national rate (67.10%). Public coverage is 59.30%, which is far higher than the national rate (36.70%). The share of people in poverty is 3.10%, which is comparable to the national rate (8.80%), up 6.60 percentage points since 2011 and above its 2019 pre-pandemic level by 6.60 percentage points. This signals a sharp increase in hardship - a shrinking consumer base, heavy pressure on public services, and job-market contraction risks. Among residents ages 3+, the largest enrollment group is kindergarten (44.50%). College enrollment is 13.76%, which is comparable to the national rate (26.70%), meaning the community mirrors broader higher-education participation.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 15 | 4.64% |
| 9th to 12th grade, no diploma: | 78 | 24.15% |
| High school graduate (includes equivalency): | 201 | 62.23% |
| Some college, no degree: | 14 | 4.33% |
| Associate's degree: | 6 | 1.86% |
| Bachelor's degree: | 9 | 2.79% |
| Graduate or professional degree: | 0 | 0.00% |
| Total: | 323 | 100% |
| High school or higher: | 230 | 71.21% |
| Bachelor's degree or higher: | 9 | 2.79% |
| Private Insurance: | 273 | 44.17% |
| Public Insurance: | 338 | 54.69% |
| No Insurance: | 7 | 1.13% |
| Total: | 618 | 100% |
| Has Health Insurance: | 611 | 98.87% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 14.0% | 7.2% | 6.6% | 3.1% |
Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.
| Nursery School, Preschool: | 0 | 0.00% |
| Kindergarten: | 97 | 44.50% |
| Elementary school (grades 1-8): | 91 | 41.74% |
| High school (grades 9-12): | 0 | 0.00% |
| College or graduate school: | 30 | 13.76% |
| Total: | 218 | 100% |
| Early Childhood: | 97 | 44.50% |
| K-12 (Primary & Secondary School): | 188 | 86.24% |
ZIP Code 70551 supports both business and residential activity. According to the Business Census (2024), there are 4 business establishments, employing about 42 people with an annual payroll of $586,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 358Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 4Source: CBP |
| 1st Quarter Payroll: | $155,000Source: CBP |
| Annual Payroll: | $586,000Source: CBP |
| # of Employees: | 42Source: CBP |
ZIP Code 70551 is located in Saint Landry Parish, Louisiana, within the Opelousas, LA Metropolitan Statistical Area (CBSA 36660) and Louisiana's 4th Congressional District. This Micro area has a population of 83,384 people, about 0.40% of whom live in ZIP Code 70551. It covers 0.667 sq mi of land and a water area of 0.001 sq mi.
| CBSA Name: | Opelousas, LASource: Census |
| CBSA Number: | 36660Source: Census |
| CBSA Type: | MicroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 83,384Source: Census |
| MSA: | Lafayette, LA MSASource: Census |
| Land Area: | 0.667 sq miSource: Census |
| Water Area: | 0.001 sq miSource: Census |
| Congressional District: | 04Source: USPS |
| Congressional Land Area: | 12435.1 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 2243395Source: Census |
| Place Name: | Leonville town; LouisianaSource: Census |
ZIP Code 70551 is in the St. Landry Parish School District, which serves grades Pre-Kindergarten thru 12th. There are 1 public school(s) in this ZIP Code, and we have located 3 private school(s). It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.