South Carolina Gazetteer
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The Town of Irmo had a population of 11,813 as of 2020-2024 American Community Survey 5-Year Estimates. Irmo ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in South Carolina. See peer rankings below.
The primary coordinate point for Irmo is located at latitude 34.086 and longitude -81.1832 in Lexington County. The formal boundaries for the Town of Irmo encompass a land area of 6.54 sq. miles and a water area of 0 sq. miles. Lexington County is in the Eastern time zone (GMT -5).
While the primary coordinates for Town of Irmo are located in Lexington County, it should be noted that the formal boundaries for this community also extend into and Richland County.
The Town of Irmo has a P1 Census Class Code which indicates populated place that is also an incorporated place with the same name and the same census code. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.
South Carolina is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The Town of Irmo is located within Irmo Division of Lexington County.
Source: 2020-2024 American Community Survey 5-Year Estimates
POPULATION | |
|---|---|
| Total Population | 11,813 (100%) |
| Population Density | 1,730 per sq mi |
| Diversity Index1 | 58 |
INCOME | |
| Median Household Income | $80,489 |
| Per Capita Income | $40,333 |
| Median Home Value | $203,400 |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 4,876 (100%) |
| Owner Occupied HU | 3,780 (77.5%) |
| Renter Occupied HU | 852 (17.5%) |
| Vacant Housing Units | 244 (5.0%) |
HOUSEHOLDS | |
| Total Households | 4,632 |
| Average Household Size | 2.54 |
| Family Households | 3,292 (71.1%) |
The table below compares Irmo to the other 475 incorporated cities, towns and CDPs in South Carolina by rank and percentile using 2020-2024 American Community Survey 5-Year Estimates 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 | # 55 | 89th |
| Population Density | # 47 | 90th |
| Median Household Income | # 90 | 81st |
| Per Capita Income | # 94 | 80th |
| Diversity Index | # 83 | 83rd |
Additional comparisons and rankings can be made with a VERY EASY TO USE South Carolina Census Data Comparison Tool.
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