California / AIANNHCE 1395 / Federally-recognized area
Grindstone
The full tribal profile includes the report map, demographic tables, broadband tables, FCC provider sections, and interactive charts.
100.0%25/3 availability
0.0%100/20 availability
0.0%1000/100 availability
5Fixed providers
Figure 1. Location of Grindstone within California, with boundary detail (inset).
About the Tribal Area
Federally recognized tribe in California, centered on Grindstone Indian Rancheria, spans about 0.1 square miles. FCC BDC records show 5 fixed providers and 1 mobile providers across roughly 4 service locations, with current availability of 100.0% at 25/3 Mbps, and 0.0% at 100/20.
Tribal Area Description
In California, Grindstone has rancheria lands managed by a federally recognized tribe. The land base is relevant for broadband planning due to rural service coverage and middle-mile access constraints.
The California Tribal Families Coalition page for Grindstone functions as a community information page rather than a long-form tribal history. It emphasizes local contacts, community resources, and links to regional programs and services. The available content is oriented toward practical resources rather than a dedicated narrative profile for the tribe. The page includes sections on Child Welfare, Juvenile Justice, Developmental Disabilities, Education, and Mental Health.
Table 1. Demographics
Indicator
2019
2020
2021
2022
2023
2024
Population
203
159
139
98
63
51
Households
67
60
53
36
25
22
Median age
25.7
26.9
27.9
28.3
28.3
36.4
Male / Female
47.8% / 52.2%
49.7% / 50.3%
46.8% / 53.2%
54.1% / 45.9%
50.8% / 49.2%
37.3% / 62.7%
Avg. household size
3.03
2.65
2.62
2.72
2.52
2.32
Pop. density (per sq mi)
1612.1
1262.7
1103.8
778.2
500.3
405.0
HH density (per sq mi)
532.1
476.5
420.9
285.9
198.5
174.7
Table 2. Economic & Education
Indicator
2019
2020
2021
2022
2023
2024
Median household income
$20,625
$18,000
$21,250
$21,000
$21,750
$37,500
Per capita income
$8,760
$10,433
$10,387
$12,562
$14,044
$23,784
Poverty rate
62.7%
58.6%
64.2%
53.1%
49.2%
29.4%
Unemployment rate
30.4%
22.4%
21.8%
24.4%
9.1%
5.3%
HS diploma or higher
55.1%
58.8%
59.0%
55.7%
54.1%
31.4%
Bachelor's degree or higher
7.5%
7.2%
7.2%
6.6%
10.8%
—
Source: U.S. Census Bureau, ACS 5-Year Estimates. Queried by AIANNHCE code. Population and household density are calculated from Census population or households divided by land area in square miles.
Table 3. Download/Upload Speeds (Mbps)
Period
Download
Upload
2019Q1
0.0 Mbps
0.0 Mbps
2019Q2
0.0 Mbps
0.0 Mbps
2019Q3
0.0 Mbps
0.0 Mbps
2019Q4
0.0 Mbps
0.0 Mbps
2020Q1
0.0 Mbps
0.0 Mbps
2020Q2
0.0 Mbps
0.0 Mbps
2020Q3
0.0 Mbps
0.0 Mbps
2020Q4
0.0 Mbps
0.0 Mbps
2021Q1
0.0 Mbps
0.0 Mbps
2021Q2
0.0 Mbps
0.0 Mbps
2021Q3
0.0 Mbps
0.0 Mbps
2021Q4
0.0 Mbps
0.0 Mbps
2022Q1
0.0 Mbps
0.0 Mbps
2022Q2
0.0 Mbps
0.0 Mbps
2022Q3
0.0 Mbps
0.0 Mbps
2022Q4
0.0 Mbps
0.0 Mbps
2023Q1
0.0 Mbps
0.0 Mbps
2023Q2
0.0 Mbps
0.0 Mbps
2023Q3
0.0 Mbps
0.0 Mbps
2023Q4
0.0 Mbps
0.0 Mbps
2024Q1
0.0 Mbps
0.0 Mbps
2024Q2
0.1 Mbps
0.0 Mbps
2024Q3
0.0 Mbps
0.0 Mbps
Table 4. Coverage by Tier (%)
Year
25/3
100/20
1 Gbps
2015
0.0%
0.0%
0.0%
2016
0.0%
0.0%
0.0%
2017
0.0%
0.0%
0.0%
2018
0.0%
0.0%
0.0%
2019
0.0%
0.0%
0.0%
2020
0.0%
0.0%
0.0%
2021
0.0%
0.0%
0.0%
2022
0.0%
0.0%
0.0%
2023
0.0%
0.0%
0.0%
2024
100.0%
0.0%
0.0%
Table 5. Adoption (%)
Year
All households
Low-income households
2017
20.2%
25.5%
2018
27.9%
55.6%
2019
29.9%
41.9%
2020
23.3%
35.3%
2021
24.5%
40.0%
2022
19.4%
43.8%
2023
12.0%
22.2%
2024
4.5%
0.0%
Table 6. Current Status (2024, %)
Tier
Coverage
25/3 Mbps
100.0%
100/20 Mbps
0.0%
1 Gbps
0.0%
Table 7. Comparison with National Averages (%)
Metric
Tribal
National
25/3 Mbps
100.0%
92%
100/20 Mbps
0.0%
85%
Adoption
4.5%
78%
Sources: FCC Broadband Data Collection, Ookla Open Data Initiative, and U.S. Census Bureau ACS 5-Year Estimates. National benchmarks are carried over from the report comparison section.
Figure 2. Speed Trends (2019–2024)
Figure 3. Availability (2015–2025)
Figure 4. Adoption (2017–2024)
Figure 5. Current Status (2024)
Figure 6. Comparison with National Averages
Figure 7. Fixed Coverage by Technology (25/3 Mbps)
Figure 8. Mobile Area Coverage
Notes: speed trends reflect quarterly mean throughput. Availability shows the share of population with access. Tooltips on the charts expose the underlying values for each series.
Table 8. Broadband Provider Summary
Metric
Value
Fixed broadband providers
5
Mobile broadband providers
1
Broadband serviceable locations
4
Table 9. Broadband Providers
Fixed
Mobile
EchoStar Corporation
AT&T Inc.
Verizon Communications Inc.
—
Viasat, Inc.
—
California Internet
—
Space Exploration Technologies Corp.
—
Table 10. Fixed Coverage by Technology (% of locations)
Technology
25/3
100/20
250/25
1 Gbps
Any Technology
100.0%
100.0%
100.0%
0.0%
Fiber
0.0%
0.0%
0.0%
0.0%
Cable
0.0%
0.0%
0.0%
0.0%
Fixed Wireless
0.0%
0.0%
0.0%
0.0%
Copper (DSL)
0.0%
0.0%
0.0%
0.0%
Satellite
100.0%
100.0%
100.0%
0.0%
Table 11. Mobile Coverage (% of area)
Technology
Coverage
4G LTE
100.0%
5G-NR (Speed Tier 1)
33.3%
5G-NR (Speed Tier 2)
33.3%
Total area (sq mi)
0.316
Table 8. Coverage by Tier and Technology (% of locations)
Dec. 2022
Technology
2/2
10/1
25/3
100/20
250/25
1000/100
All Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
All Satellite
100.0
100.0
100.0
0.0
0.0
0.0
All Wired
0.0
0.0
0.0
0.0
0.0
0.0
All Wired and Licensed Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
Any Technology
100.0
100.0
100.0
0.0
0.0
0.0
Any Terrestrial
0.0
0.0
0.0
0.0
0.0
0.0
Cable
0.0
0.0
0.0
0.0
0.0
0.0
Cable/Fiber
0.0
0.0
0.0
0.0
0.0
0.0
Copper
0.0
0.0
0.0
0.0
0.0
0.0
Fiber
0.0
0.0
0.0
0.0
0.0
0.0
GSO Satellite
100.0
100.0
100.0
0.0
0.0
0.0
Licensed Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
NGSO Satellite
100.0
100.0
100.0
0.0
0.0
0.0
Other
0.0
0.0
0.0
0.0
0.0
0.0
Unlicensed Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
June 2023
Technology
2/2
10/1
25/3
100/20
250/25
1000/100
All Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
All Satellite
100.0
100.0
100.0
100.0
0.0
0.0
All Wired
0.0
0.0
0.0
0.0
0.0
0.0
All Wired and Licensed Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
Any Technology
100.0
100.0
100.0
100.0
0.0
0.0
Any Terrestrial
0.0
0.0
0.0
0.0
0.0
0.0
Cable
0.0
0.0
0.0
0.0
0.0
0.0
Cable/Fiber
0.0
0.0
0.0
0.0
0.0
0.0
Copper
0.0
0.0
0.0
0.0
0.0
0.0
Fiber
0.0
0.0
0.0
0.0
0.0
0.0
GSO Satellite
100.0
100.0
100.0
0.0
0.0
0.0
Licensed Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
NGSO Satellite
100.0
100.0
100.0
100.0
0.0
0.0
Other
0.0
0.0
0.0
0.0
0.0
0.0
Unlicensed Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
Dec. 2023
Technology
2/2
10/1
25/3
100/20
250/25
1000/100
All Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
All Satellite
100.0
100.0
100.0
100.0
0.0
0.0
All Wired
0.0
0.0
0.0
0.0
0.0
0.0
All Wired and Licensed Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
Any Technology
100.0
100.0
100.0
100.0
0.0
0.0
Any Terrestrial
0.0
0.0
0.0
0.0
0.0
0.0
Cable
0.0
0.0
0.0
0.0
0.0
0.0
Cable/Fiber
0.0
0.0
0.0
0.0
0.0
0.0
Copper
0.0
0.0
0.0
0.0
0.0
0.0
Fiber
0.0
0.0
0.0
0.0
0.0
0.0
GSO Satellite
100.0
100.0
100.0
0.0
0.0
0.0
Licensed Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
NGSO Satellite
100.0
100.0
100.0
100.0
0.0
0.0
Other
0.0
0.0
0.0
0.0
0.0
0.0
Unlicensed Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
June 2024
Technology
2/2
10/1
25/3
100/20
250/25
1000/100
All Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
All Satellite
100.0
100.0
100.0
100.0
0.0
0.0
All Wired
0.0
0.0
0.0
0.0
0.0
0.0
All Wired and Licensed Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
Any Technology
100.0
100.0
100.0
100.0
0.0
0.0
Any Terrestrial
0.0
0.0
0.0
0.0
0.0
0.0
Cable
0.0
0.0
0.0
0.0
0.0
0.0
Cable/Fiber
0.0
0.0
0.0
0.0
0.0
0.0
Copper
0.0
0.0
0.0
0.0
0.0
0.0
Fiber
0.0
0.0
0.0
0.0
0.0
0.0
GSO Satellite
100.0
100.0
100.0
0.0
0.0
0.0
Licensed Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
NGSO Satellite
100.0
100.0
100.0
100.0
0.0
0.0
Other
0.0
0.0
0.0
0.0
0.0
0.0
Unlicensed Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
Dec. 2024
Technology
2/2
10/1
25/3
100/20
250/25
1000/100
All Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
All Satellite
100.0
100.0
100.0
100.0
0.0
0.0
All Wired
0.0
0.0
0.0
0.0
0.0
0.0
All Wired and Licensed Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
Any Technology
100.0
100.0
100.0
100.0
0.0
0.0
Any Terrestrial
0.0
0.0
0.0
0.0
0.0
0.0
Cable
0.0
0.0
0.0
0.0
0.0
0.0
Cable/Fiber
0.0
0.0
0.0
0.0
0.0
0.0
Copper
0.0
0.0
0.0
0.0
0.0
0.0
Fiber
0.0
0.0
0.0
0.0
0.0
0.0
GSO Satellite
100.0
100.0
100.0
0.0
0.0
0.0
Licensed Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
NGSO Satellite
100.0
100.0
100.0
100.0
0.0
0.0
Other
0.0
0.0
0.0
0.0
0.0
0.0
Unlicensed Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
June 2025
Technology
2/2
10/1
25/3
100/20
250/25
1000/100
All Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
All Satellite
100.0
100.0
100.0
100.0
100.0
0.0
All Wired
0.0
0.0
0.0
0.0
0.0
0.0
All Wired and Licensed Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
Any Technology
100.0
100.0
100.0
100.0
100.0
0.0
Any Terrestrial
0.0
0.0
0.0
0.0
0.0
0.0
Cable
0.0
0.0
0.0
0.0
0.0
0.0
Cable/Fiber
0.0
0.0
0.0
0.0
0.0
0.0
Copper
0.0
0.0
0.0
0.0
0.0
0.0
Fiber
0.0
0.0
0.0
0.0
0.0
0.0
GSO Satellite
100.0
100.0
100.0
0.0
0.0
0.0
Licensed Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
NGSO Satellite
100.0
100.0
100.0
100.0
100.0
0.0
Other
0.0
0.0
0.0
0.0
0.0
0.0
Unlicensed Fixed Wireless
0.0
0.0
0.0
0.0
0.0
0.0
FCC Broadband Data Collection (BDC), June 2025 filing vintage. Coverage values show the share of residential broadband serviceable locations by technology and speed tier across D22, J23, D23, J24, D24, and J25 filings.
Source: FCC Broadband Data Collection (BDC), June 2025 Filing (J25). Fixed coverage shows the share of residential broadband serviceable locations, and mobile coverage shows the share of tribal land area.