Also See Rio Grande, NJ: ZIP Codes & Maps
The Rio Grande CDP(1) had a population of 3,738 as of July 1, 2025.
The primary coordinate point for Rio Grande is located at latitude 39.0146 and longitude -74.8816 in Cape May County. The formal boundaries for the Rio Grande Census Designated Place encompass a land area of 2.46 sq. miles and a water area of 0.03 sq. miles. Cape May County is in the Eastern time zone (GMT -5).
The Rio Grande 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 Rio Grande Census Designated Place is located within Township of Middle, a minor civil division (MCD) of Cape May County.
POPULATION | |
|---|---|
| Total Population | 3,738 (100%) |
| Population in Households | 3,693 (98.8%) |
| Population in Families | 2,914 (78.0%) |
| Population in Group Quarters1 | 45 ( 1.2%) |
| Population Density | 1,385 |
| Diversity Index2 | 63 |
INCOME | |
| Median Household Income | $84,776 |
| Average Household Income | $108,404 |
| % of Income for Mortgage4 | 30% |
| Per Capita Income | $45,396 |
| Wealth Index5 | 121 |
| Socioeconomic Status Index6 | Moderate (49.9) |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 1,881 (100%) |
| Owner Occupied HU | 1,185 (63.0%) |
| Renter Occupied HU | 379 (20.1%) |
| Vacant Housing Units | 317 (16.9%) |
| Median Home Value | $411,089 |
| Average Home Value | $650,673 |
| Housing Affordability Index3 | 75 |
HOUSEHOLDS | |
| Total Households | 1,564 |
| Average Household Size | 2.36 |
| Family Households | 981 |
| Average Family Size | 3.00 |
GROWTH RATE / YEAR |
2020-2025 | 2025-2030 |
|---|---|---|
| Population | 0.67% | 0.24% |
| Households | 1.17% | 0.53% |
| Families | 0.40% | |
| Median Household Income | 1.90% | |
| Per Capita Income | 3.01% | |
| Owner Occupied HU | 1.04% |
The table below compares Rio Grande to the other 700 incorporated cities, towns and CDPs in New Jersey 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 | # 352 | 50th |
| Population Density | # 445 | 37th |
| Median Household Income | # 550 | 22nd |
| Housing Affordability Index | # 321 | 46th |
| Per Capita Income | # 505 | 28th |
| Diversity Index | # 248 | 65th |
Additional comparisons and rankings can be made with a VERY EASY TO USE New Jersey Census Data Comparison Tool.
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