Demographics

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The Hoopa Valley Indian Reservation is the largest reservation in California. According to the Executive Order issued by President U.S. Grant on June 23, 1876, the Reservation encompasses 89,572 acres. As currently surveyed, the Reservation is nearly square with sides 12 miles in length or approximately 144 square miles. This area encompasses roughly 50% of the Hupa aboriginal territory. The Reservation is located in the northeastern corner of Humboldt County in Northern California. It lies approximately 50 miles inland from the Pacific Ocean, and 300 miles north of San Francisco, California.

The 2000 U.S. Census indicated that there are 2,633 people residing on the Reservation. As a supplement to the census information, the Tribe normally uses the 1997 Bureau of Indian Affairs (BIA) Population and Labor Force Report. This report, unlike the census, utilizes a wide variety of sources including per-capita payments, Hupa Health patient records, and the Welfare Department's caseloads. The BIA report estimated the reservation Native American population to be 1,983. The 2000 census reported 403 non-Indian people residing on the reservation.

Enrollment

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The 2000 census states the reservation population is 2,633. By utilizing the 1997 BIA Report and the 2000 census population statistics, the population on the reservation was determined to include 1,893 Hoopa, 337 other Native Americans, and 403 non-Indians. Children are continually being added to the Hoopa Valley Tribal Role following an applications process and finally approval by the Tribal Council. A constitutional amendment was passed in the spring of 2008, to modify the blood quantum requirement to a minimum of 1/8 Hoopa Indian blood in order to qualify for membership. For more information contact our enrollment committee or the Tribal Office (530) 625.4211.

ENROLLMENT APPLICATION FORM

Climate

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The hydrology of the Hoopa Valley is characterized by relatively wet, cool winters and dry summers. Temperatures in the basin are influenced by prevailing air masses, elevations, drainage of cold dense air from higher elevations and the distance from the Pacific Ocean. The mean annual temperature at the Hoopa weather station, (Agency Field, 350 feet above mean sea level), is 56.9°F. The mean annual temperature in winter is 45.1°F, and in summer is 70.9°F. Mean annual upland temperature recorded at 1,700 feet is 52.4°F. Summers high of 113°F and a winter low of 7°F have also been recorded.

Roughly three-quarters of the total annual precipitation occurs from November through March. The majority of the precipitation is associated with storms of several days duration and relatively moderate intensity. Snow occurs in moderate amounts at elevations below 2000 feet; snow remains on the ground for appreciable periods of time at elevations exceeding 4000 feet.

The mean annual precipitation at Hoopa is approximately 58.35 inches. Winter precipitation in the three-month winter period from December through February averages 30.6 inches. Mean summer precipitation is 1.32 inches. Frequency analysis of precipitation data indicates that there is only a 25% probability that the Hoopa Valley will receive less than 50 inches a year; there is a 5 percent probability of receiving less than 40 inches per year. Rainfall intensities of 2 inches per 6-hour period and 4-inches in a 24 hour period are common. Snowfall averages approximately 0.4 inches annually.

Census

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