Pennsylvania Gazetteer
Also See New Castle, PA: ZIP Codes & Maps
The Borough of South New Castle had a population of 629 as of July 1, 2025.
The primary coordinate point for South New Castle is located at latitude 40.9778 and longitude -80.3451 in Lawrence County. The formal boundaries for the Borough of South New Castle encompass a land area of 0.32 sq. miles and a water area of 0 sq. miles. Lawrence County is in the Eastern time zone (GMT -5).
The Borough of South New Castle has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.
POPULATION | |
|---|---|
| Total Population | 629 (100%) |
| Population in Households | 629 (100.0%) |
| Population in Families | 523 (83.1%) |
| Population in Group Quarters1 | 0 |
| Population Density | 1,940 |
| Diversity Index2 | 17 |
INCOME | |
| Median Household Income | $63,856 |
| Average Household Income | $82,048 |
| % of Income for Mortgage4 | 8% |
| Per Capita Income | $35,741 |
| Wealth Index5 | 75 |
| Socioeconomic Status Index6 | Moderate (51.9) |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 300 (100%) |
| Owner Occupied HU | 222 (74.0%) |
| Renter Occupied HU | 52 (17.3%) |
| Vacant Housing Units | 26 ( 8.7%) |
| Median Home Value | $82,000 |
| Average Home Value | $88,682 |
| Housing Affordability Index3 | 263 |
HOUSEHOLDS | |
| Total Households | 274 |
| Average Household Size | 2.30 |
| Family Households | 202 |
| Average Family Size | 3.00 |
GROWTH RATE / YEAR |
2020-2025 | 2025-2030 |
|---|---|---|
| Population | -0.54% | -0.16% |
| Households | -0.14% | -0.15% |
| Families | -1.22% | |
| Median Household Income | 1.82% | |
| Per Capita Income | 1.95% | |
| Owner Occupied HU | -0.45% |
The table below compares South New Castle to the other 2,002 incorporated cities, towns and CDPs in Pennsylvania 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 | # 1236 | 38th |
| Population Density | # 729 | 64th |
| Median Household Income | # 1292 | 36th |
| Housing Affordability Index | # 1986 | 99th |
| Per Capita Income | # 1101 | 45th |
| Diversity Index | # 1193 | 40th |
Additional comparisons and rankings can be made with a VERY EASY TO USE Pennsylvania Census Data Comparison Tool.
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