Black Point-Green Point is a census-designated place (CDP) in Marin County, California, United States. It is unincorporated, sitting between the city of Novato to the southwest and the Petaluma River and San Pablo Bay to the northeast. The population was 1,431 at the 2020 census.
The first Black Point post office operated from 1865 to 1891. The Grandview post office opened in 1905, changed its name to Black Point in 1944, and closed in 1952. The fields to the south of Black Point were used for the location of the Black Point Communications Annex, an antenna array that was used to communicate with the Hamilton Air Force Base.
Geography
Black Point-Green Point is east of the center of Novato and north of San Rafael, the Marin county seat. The Petaluma River, which forms the northeastern edge of the community, is the Sonoma County line.
According to the United States Census Bureau, the CDP has a total area of , of which , or 2.42%, are water. Both the Northwestern Pacific Railroad and the Black Point Aggregates company used to operate a quarry in Black Point to produce ballast and fills for the railroad, as well as shipment abroad. The steep scars are still visible, although the flattened area is now part of the StoneTree Golf Course. Black Point was the location of the annual Northern California Renaissance Faire from 1971 to 1998, after which the site was developed into the StoneTree Golf Course.
Demographics
Black Point-Green Point first appeared as a census designated place in the 2000 U.S. census.
!Pop 2010
!style="background-color: #ffffb3;" |Pop 2020
!% 2000
!% 2010
!style="background-color: #ffffb3;" |% 2020
|-
|White alone (NH)
|1,023
|1,117
|style='background: #ffffe6; |1,105
|89.50%
|85.53%
|style='background: #ffffe6; |77.22%
|-
|Black or African American alone (NH)
|6
|6
|style='background: #ffffe6; |3
|0.52%
|0.46%
|style='background: #ffffe6; |0.21%
|-
|Native American or Alaska Native alone (NH)
|2
|4
|style='background: #ffffe6; |4
|0.17%
|0.31%
|style='background: #ffffe6; |0.28%
|-
|Asian alone (NH)
|25
|44
|style='background: #ffffe6; |91
|2.19%
|3.37%
|style='background: #ffffe6; |6.36%
|-
|Native Hawaiian or Pacific Islander alone (NH)
|10
|0
|style='background: #ffffe6; |1
|0.87%
|0.00%
|style='background: #ffffe6; |0.07%
|-
|Other race alone (NH)
|5
|2
|style='background: #ffffe6; |3
|0.44%
|0.15%
|style='background: #ffffe6; |0.21%
|-
|Mixed race or Multiracial (NH)
|22
|21
|style='background: #ffffe6; |81
|1.92%
|1.61%
|style='background: #ffffe6; |5.66%
|-
|Hispanic or Latino (any race)
|50
|112
|style='background: #ffffe6; |143
|4.37%
|8.58%
|style='background: #ffffe6; |9.99%
|-
|Total
|1,143
|1,306
|style='background: #ffffe6; |1,431
|100.00%
|100.00%
|style='background: #ffffe6; |100.00%
|}
2020 census
As of the 2020 census, Black Point-Green Point had a population of 1,431. The population density was . The racial makeup was 80.0% White, 0.3% African American, 0.3% Native American, 6.4% Asian, 0.1% Pacific Islander, 3.4% from other races, and 9.5% from two or more races. Hispanic or Latino of any race were 10.0% of the population.
The age distribution was 12.3% under the age of 18, 8.7% aged 18 to 24, 15.9% aged 25 to 44, 30.6% aged 45 to 64, and 32.4% who were 65years of age or older. The median age was 54.4years. For every 100 females, there were 95.5 males, and for every 100 females age 18 and over there were 100.2 males age 18 and over.
The whole population lived in households. There were 588 households, out of which 20.4% included children under the age of 18, 56.5% were married-couple households, 8.2% were cohabiting couple households, 19.6% had a female householder with no partner present, and 15.8% had a male householder with no partner present. 24.1% of households were one person, and 13.6% were one person aged 65 or older. The average household size was 2.43. There were 401 families (68.2% of all households).