Irwin township, Tripp County, South Dakota (SD) detailed profile
Land area: 35.7 sq. mi.
Water area: 0.1 sq. mi.
Population: 26 (all rural)
| Males: 14 |  (53.8%) |
| Females: 12 |  (46.2%) |
Occupied houses/apartments: 26 (24 owner occupied, 2 renter occupied)
| % of renters here: | 8% |
| State: | 32% |
Races in Irwin township:
- White Non-Hispanic: 100.0%
Median age of males: 54.0
Median age of females: 52.0
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Average household size: 2.17
| Irwin township: | 2.2 people |
| South Dakota: | 2.5 people |
Average family size: 2.56
Estimated median household income in 2013: ($51,250 in 1999)
Median contract rent in 2013: $345 (lower quartile is $256, upper quartile is $321)| Irwin township: | $38,889 |
| South Dakota: | $48,947 |
| Here: | $346 |
| State: | $529 |
Estimated median house or condo value in 2013: $75,472 (it was $45,500 in 2000)
| : | $75,472 |
| South Dakota: | $138,400 |
| Population density: 1 people per square mile | (very low). |
| This township: | 8.8% |
| Whole state: | 13.2% |
| This township: | 8.8% |
| Whole state: | 5.8% |
100% of Irwin township residents lived in the same house 5 years ago.
Place of birth for U.S.-born residents:
- This state: 34
- Northeast: 0
- Midwest: 0
- South: 0
- West: 0
Percentage of households with unmarried partners: 0.0%
No gay or lesbian households reported
Housing units in structures:
- One, detached: 18
- Educational services (19%)
- Construction (12%)
- Food (9%)
- Finance and insurance (6%)
- Machinery (4%)
- Furniture and related product manufacturing (4%)
- Miscellaneous nondurable goods merchant wholesalers (4%)
- Educational services (26%)
- Accommodation and food services (14%)
- Construction (8%)
- Food and beverage stores (8%)
- Social assistance (8%)
- Personal and laundry services (8%)
- Used merchandise, gift, novelty, and souvenir, and other miscellaneous stores (7%)
- Other management occupations except farmers and farm managers (12%)
- Other teachers and instructors, education, training, and library occupations (11%)
- Sales representatives, services, wholesale and manufacturing (11%)
- Driver/sales workers and truck drivers (9%)
- Engineers (7%)
- Other sales and related workers including supervisors (7%)
- Construction trades workers except carpenters, electricians, painters, plumbers, and construction laborers (5%)
- Child care workers (15%)
- Preschool, kindergarten, elementary and middle school teachers (14%)
- Cooks and food preparation workers (14%)
- Secretaries and administrative assistants (8%)
- Other management occupations except farmers and farm managers (7%)
- Postsecondary teachers (7%)
- Other food preparation and serving workers including supervisors (7%)
Most common first ancestries reported in Irwin township:
- Irish (44.1%)
- German (41.2%)
- Swedish (8.8%)
- Czech (5.9%)
Means of transportation to work:
- Drove a car alone: 7 (50%)
- Worked at home: 7 (50%)
Most commonly used house heating fuel:
- Bottled, tank, or LP gas (61%)
- Fuel oil, kerosene, etc. (39%)
All residents speak only English at home
Household type by relationship:
Households: 34- In family households: 29 (9 male householders, 0 female householders)
11 spouses, 9 children (9 natural, 0 adopted, 0 stepchildren), 0 grandchildren, 0 brothers or sisters, 0 parents, 0 other relatives, 0 non-relatives
- In nonfamily households: 5 (5 male householders (5 living alone)), 0 female householders (0 living alone)), 0 nonrelatives
Size of family households: 5 2-persons, 4 5-persons,
Size of nonfamily households: 5 1-person,
5 married couples with children.
0 single-parent households (0 men, 0 women).
| Here: | 0.0% |
| South Dakota: | 5.6% |