Table 1. Socio-Economic and Demographic Characteristics for All Census Tracts, Census Tracts with and without Tribal Land, and Tribal Census Tracts.

	All Census Tractsa (n = 8024)		Census Tracts with Tribal Landb (n = 52)		Census Tracts without Tribal Landc (n = 2300)		Tribal Census Tractsd (n = 94)
	Mean	SD	Mean	SD	Mean	SD	Mean	SD
Socio-demographic data
Population density (per square mile)	8,369	9,490	43	71	4,553	4,529	506	664
Urban Households %	94d	21	21	28	90	26	30	42
Race/ Ethnicity
White %	59	20	79	9.2	66	17	0	0
Black %	6.2	9.6	1.1	1.9	4.8	5.5	0	0
Asian %	13	15	1.2	1.1	6.7	7.9	3.1	8.3
AIAN %	1.0	1.6	6.8	6.5	1.3	2.3	53	29
Latino or Hispanic %	36	26	18	13	37	24	18	21
Socio-Economic Indicators
Average Per Capita Income($)e	30,320f	17,875	25,783	6,799	26,449	12,857	21,955	16,136
High School Diploma %	80	17	86	6.9	81	15	77	16
Median Household Income($)e	66,049f	31,058	50,849	16,630	59,311f	25,113	43,941f	20,454
Area (square miles)	1.8	15	61	103	2.9	20	16	51

Note. SD, Standard Deviation; AIAN, American Indians and Alaska Natives

^a All census tracts in California

^b Census tracts that contain any tribal lands

^c Census tracts without tribal lands in counties with tribal lands

^d Tribal Census Tracts as defined in US 2010 Census and include primarily the land area of federally recognized American Indian reservations or off-reservation tribal lands

^e Adjusted for inflation to 2010 dollar

^f Sample sizes differed slightly due to missing data on some characteristics. Sample size of all census tracts for average per capita income = 8010.Sample size of all census tracts for median household income = 7969. Sample size of census tracts without triabl lands for median household income = 2293. Sample size of tribal census tracts for median household income = 87.