Also See Port Allen, LA: ZIP Codes & Maps
The Erwinville CDP(1) had a population of 2,364 as of July 1, 2025.
The primary coordinate point for Erwinville is located at latitude 30.531 and longitude -91.4079 in West Baton Rouge Parish. The formal boundaries for the Erwinville Census Designated Place encompass a land area of 7.97 sq. miles and a water area of 0 sq. miles. West Baton Rouge Parish is in the Central time zone (GMT -6).
The Erwinville Census Designated Place has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.
The Erwinville Census Designated Place is located within Parish Governing Authority District 8, a minor civil division (MCD) of West Baton Rouge Parish.
POPULATION | |
|---|---|
| Total Population | 2,364 (100%) |
| Population in Households | 2,364 (100.0%) |
| Population in Families | 1,868 (79.0%) |
| Population in Group Quarters1 | 0 |
| Population Density | 248 |
| Diversity Index2 | 56 |
INCOME | |
| Median Household Income | $78,014 |
| Average Household Income | $93,217 |
| % of Income for Mortgage4 | 22% |
| Per Capita Income | $39,393 |
| Wealth Index5 | 76 |
| Socioeconomic Status Index6 | Low (34.5) |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 1,144 (100%) |
| Owner Occupied HU | 859 (75.1%) |
| Renter Occupied HU | 140 (12.2%) |
| Vacant Housing Units | 145 (12.7%) |
| Median Home Value | $275,000 |
| Average Home Value | $287,273 |
| Housing Affordability Index3 | 105 |
HOUSEHOLDS | |
| Total Households | 999 |
| Average Household Size | 2.37 |
| Family Households | 652 |
| Average Family Size | 3.00 |
GROWTH RATE / YEAR |
2020-2025 | 2025-2030 |
|---|---|---|
| Population | 0.73% | 0.80% |
| Households | 1.33% | 1.10% |
| Families | 1.14% | |
| Median Household Income | 0.65% | |
| Per Capita Income | 1.72% | |
| Owner Occupied HU | 1.12% |
The table below compares Erwinville to the other 489 incorporated cities, towns and CDPs in Louisiana by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
| Variable Description | Rank | Percentile |
|---|---|---|
| Total Population | # 172 | 65th |
| Population Density | # 350 | 29th |
| Median Household Income | # 57 | 89th |
| Housing Affordability Index | # 216 | 44th |
| Per Capita Income | # 80 | 84th |
| Diversity Index | # 170 | 65th |
Additional comparisons and rankings can be made with a VERY EASY TO USE Louisiana Census Data Comparison Tool.
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