Question: What is the average income in the county where the community of Tamalpais Valley is located?

full_context: Document 1: Homestead Valley, Marin County, California: Homestead Valley is an unincorporated community in Marin County, California. It lies at an elevation of 33 feet (10 m). For census purposes, Homestead Valley is aggregated with Tamalpais Valley into the census-designated place, Tamalpais-Homestead Valley.
Document 2: Vincent Landing, California: Vincent Landing (formerly, Vincents Landing) is an unincorporated community in Marin County, California. It is located on the northeast shore of Tomales Bay southwest of Tomales, at an elevation of 20 feet (6 m).
Document 3: Tahoe Valley, California: Tahoe Valley is a former unincorporated community in El Dorado County, California, now incorporated into South Lake Tahoe. It lies at an elevation of 6270 feet (1911 m). Tahoe Valley is about the junction of U.S. Route 50 and State Route 89.
Document 4: Tamalpais Valley, California: Tamalpais Valley (also known as "Tam Valley", and formerly called "Big Coyote", "Coyote Valley" or "Coyote Hollow" until 1908) is an unincorporated community in Marin County, California.
Document 5: Household income in the United States: One key measure is the real median level, meaning half of households have income above that level and half below, adjusted for inflation. According to the Census, this measure was $59,039 in 2016, a record high. This was the largest two year increase percentage increase on record.
Document 6: Mount Tamalpais: Mount Tamalpais (; ; Coast Miwok: , known locally as Mount Tam) is a peak in Marin County, California, United States, often considered symbolic of Marin County. Much of Mount Tamalpais is protected within public lands such as Mount Tamalpais State Park, the Marin Municipal Water District watershed, and National Park Service land, such as Muir Woods.
Document 7: Samuel P. Taylor State Park: Samuel P. Taylor State Park is a state park located in Marin County, California. It contains approximately of redwood and grassland. The park contains about of old-growth forest, some of which can be seen along the Pioneer Tree Trail.
Document 8: Bivalve, California: Bivalve is an unincorporated community in Marin County, California. It is located on the Northwestern Pacific Railroad northwest of Point Reyes Station, at an elevation of 43 feet (13 m).
Document 9: Lewis County, West Virginia: The median income for a household in the county was $27,066, and the median income for a family was $32,431. Males had a median income of $27,906 versus $18,733 for females. The per capita income for the county was $13,933. 19.90% of the population and 16.30% of families were below the poverty line. 27.00% of those under the age of 18 and 11.20% of those 65 and older were living below the poverty line.
Document 10: Hampshire County, West Virginia: The median income for a household in the county was $31,666, and the median income for a family was $37,616. Males had a median income of $28,884 versus $19,945 for females. The per capita income for the county was $14,851. About 12.90% of families and 16.30% of the population were below the poverty line, including 22.70% of those under age 18 and 13.10% of those age 65 or over.
Document 11: Household income in the United States: One key measure is the real median level, meaning half of households have income above that level and half below, adjusted for inflation. According to the Census, this measure was $59,039 in 2016, a record high. This was the largest two year percentage increase on record.
Document 12: Fresno County, California: The median income for a household in the county was $34,725, and the median income for a family was $38,455. Males had a median income of $33,375 versus $26,501 for females. The per capita income for the county was $15,495. About 17.6% of families and 22.9% of the population were below the poverty line, including 31.7% of those under age 18 and 9.9% of those age 65 or over.
Document 13: Tiburon, California: Tiburon is an incorporated town in Marin County, California. It is located on the Tiburon Peninsula, which reaches south into the San Francisco Bay. The smaller city of Belvedere (formerly a separate island) occupies the south-west part of the peninsula and is contiguous with Tiburon. Tiburon is bordered by Corte Madera to the north and Mill Valley to the west, but is otherwise mostly surrounded by the Bay. Besides Belvedere and Tiburon, much of the peninsula is unincorporated, including portions of the north side and the communities of Strawberry and Paradise Cay.
Document 14: List of highest-income counties in the United States: Rank County State Median Household Income Loudoun County Virginia $134,464 Howard County Maryland $120,941 Fairfax County Virginia $115,717 Hunterdon County New Jersey $113,684 5 Santa Clara County California $111,069 6 Arlington County Virginia $110,388 7 Douglas County Colorado $109,292 8 San Mateo County California $108,627 9 Morris County New Jersey $106,985 10 Williamson County Tennessee $106,054 11 Nassau County New York $105,870 12 Somerset County New Jersey $104,478 13 Marin County California $103,845 14 San Francisco County California $103,801 15 Delaware County Ohio $101,693 16 Forsyth County Georgia $100,909 17 Montgomery County Maryland $99,763 18 Calvert County Maryland $98,732 19 Prince William County Virginia $97,986 20 Stafford County Virginia $97,484 21 Putnam County New York $96,992 22 Anne Arundel County Maryland $96,483 23 Charles County Maryland $95,735 24 Rockwall County Texas $95,731 25 Middlesex County Massachusetts $95,249
Document 15: Detroit: Oakland County in Metro Detroit, once rated amongst the wealthiest US counties per household, is no longer shown in the top 25 listing of Forbes magazine. But internal county statistical methods – based on measuring per capita income for counties with more than one million residents – show that Oakland is still within the top 12, slipping from the 4th-most affluent such county in the U.S. in 2004 to 11th-most affluent in 2009. Detroit dominates Wayne County, which has an average household income of about $38,000, compared to Oakland County's $62,000.
ground_truth: $103,845
sub_queries: Tamalpais Valley >> located in the administrative territorial entity Answer: Marin County
what is the average income in Marin County Answer: $103,845