| Official Name: | South Lebanon, Oregon |
| Settlement Type: | Census-designated place |
| Mapsize: | 250px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Oregon |
| Subdivision Type2: | County |
| Subdivision Name2: | Linn |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 3.05 |
| Area Land Km2: | 3.05 |
| Area Water Km2: | 0.00 |
| Area Total Sq Mi: | 1.18 |
| Area Land Sq Mi: | 1.18 |
| Area Water Sq Mi: | 0.00 |
| Population As Of: | 2020 |
| Population Total: | 1228 |
| Population Density Km2: | 402.95 |
| Population Density Sq Mi: | 1043.33 |
| Timezone: | Pacific (PST) |
| Utc Offset: | -8 |
| Timezone Dst: | PDT |
| Utc Offset Dst: | -7 |
| Elevation Ft: | 390 |
| Coordinates: | 44.5033°N -122.8839°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 97355[2] |
| Area Code: | 458 and 541 |
| Blank Name: | FIPS code |
| Blank Info: | 41-68875[3] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2408767 |
South Lebanon is a census-designated place (CDP) in Linn County, Oregon, United States, comprising unincorporated land on the south side of the city of Lebanon. The population was 1,005 at the 2010 census.[4] The population and area of the CDP decreased between 2000 and 2010 as the city limits of Lebanon expanded southward.
U.S. Route 20 runs along the northeast edge of the CDP, leading north into Lebanon and southeast to Sweet Home.
According to the United States Census Bureau, the CDP has a total area of 3.1km2, all land.[5]
As of the census of 2000, there were 1,155 people, 411 households, and 325 families residing in the CDP. The population density was 848.5sp=usNaNsp=us. There were 422 housing units at an average density of 310sp=usNaNsp=us. The racial makeup of the CDP was 96.45% White, 0.69% Native American, 0.09% Asian, 0.17% from other races, and 2.60% from two or more races. Hispanic or Latino of any race were 1.99% of the population.
There were 411 households, out of which 33.8% had children under the age of 18 living with them, 64.0% were married couples living together, 8.5% had a female householder with no husband present, and 20.7% were non-families. 17.0% of all households were made up of individuals, and 8.8% had someone living alone who was 65 years of age or older. The average household size was 2.81 and the average family size was 3.11.
In the CDP, the population was spread out, with 26.5% under the age of 18, 10.0% from 18 to 24, 24.2% from 25 to 44, 23.7% from 45 to 64, and 15.7% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 98.8 males. For every 100 females age 18 and over, there were 94.3 males.
The median income for a household in the CDP was $31,172, and the median income for a family was $32,656. Males had a median income of $31,985 versus $23,750 for females. The per capita income for the CDP was $15,247. About 10.1% of families and 8.9% of the population were below the poverty line, including 8.5% of those under age 18 and none of those age 65 or over.