San Joaquin Data Compass
The data guide for San Joaquin.

Inflation & Prices

How are rising energy prices and inflation shaping household costs and economic resilience across the Northern California region?

Residents throughout Northern California have faced significant cost-of-living increases over the past decade, driven by sharp rises in energy prices and persistent consumer inflation. The San Francisco–Oakland–Hayward CPI is used here as a regional price proxy. Its geographic coverage excludes San Joaquin County, so it does not directly measure price changes in the county. In that regional series, gasoline prices surged by about 169% from February 2016 to June 2022, reaching a peak of $6.56 per gallon. Similarly, regional electricity rates nearly doubled over the same period, hitting $0.419 per kilowatt-hour in 2024. Piped gas prices also rose sharply, by 42% since 2021, further straining household budgets in the region.

45.2%

increase in the regional CPI-U from February 2015 to August 2026, compared with 42.0% nationally, highlighting persistently higher living costs in the region.

168.7%

increase in regional gasoline prices from the lowest point in February 2016 ($2.44) to the highest point in June 2022 ($6.56); the August 2026 price was $5.71, showing the extreme volatility in fuel costs over this period.

143.6%

increase in regional electricity prices from the lowest point in November 2015 ($0.172 per kWh) to the highest point in June 2024 ($0.419 per kWh), underlining the persistent upward pressure on energy costs over the decade.

Northern California Consumer Price Index

The regional Consumer Price Index for All Urban Consumers (CPI-U) from the San Francisco-Oakland-Hayward Combined Statistical Area (CSA), is used as the Northern California Consumer Price Index. (Note: this index covers the San Francisco-Oakland-Hayward metropolitan area, which does not include San Joaquin County; it is used here as a regional proxy.) It shows that from February 2015 to August 2026 regional prices increased 45.2% compared with a 42.0% increase during the same period nationally. Noticeably during the period from February 2015 to February 2020 regional prices increased 17.6% while nationally they increased 10.2%. However, from February 2020 to August 2026 regional prices increased 23.5% compared with a 28.9% increase nationally, so the regional gap has narrowed since 2020.

45.2%

increase in the regional CPI-U from February 2015 to August 2026, compared with 42.0% nationally, highlighting persistently higher living costs in the region.

Northern California Consumer Price Index
United States
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Northern California Consumer Price Index (Not Seasonally Adjusted)
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CPI-U For United States (Seasonally Adjusted)
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Regional Gasoline Prices Over Time

Gasoline prices in the San Francisco–Oakland–Hayward metro area, used here as a regional proxy that excludes San Joaquin County, have shown significant volatility over the past decade. The chart shows gasoline prices from 2015 through August 2026, and prices experienced multiple cycles of increases and decreases, with a notable spike in 2022 when prices reached over $6 per gallon. While prices have generally trended upward over the long term, the region has seen periods of both rapid increases and substantial decreases. These fluctuations can have significant impacts on household budgets, transportation costs, and overall economic activity in San Joaquin County.

168.7%

Increase in regional gasoline prices from the lowest point in February 2016 ($2.44) to the highest point in June 2022 ($6.56); the August 2026 price was $5.71, showing the extreme volatility in fuel costs over this period.

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Gasoline Prices (Average Price per Gallon, San Francisco–Oakland–Hayward)
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Regional Electricity Prices Over Time

Electricity prices in the San Francisco–Oakland–Hayward metro area, a regional proxy that excludes San Joaquin County, have exhibited a steady upward trajectory over the past decade, reflecting rising energy generation costs, infrastructure investments, and regulatory adjustments. From 2015 to 2024, average prices per kilowatt-hour (kWh) climbed from around $0.22 to a peak of approximately $0.419 in 2024, marking a near doubling over the period. The most significant surge occurred between late 2021 and 2023, driven by increased demand, supply chain constraints, and higher fuel costs. While prices slightly declined in late 2024, they remain considerably above historical averages, imposing higher electricity bills on both residential and business consumers, and contributing to broader inflationary pressures across the region.

143.6%

Increase in regional electricity prices from the lowest point in November 2015 ($0.172 per kWh) to the highest point in June 2024 ($0.419 per kWh), underlining the persistent upward pressure on energy costs over the decade.

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Average Electricity Prices, San Francisco–Oakland–Hayward (historical — discontinued after December 2024)
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Regional Average Utility Piped Gas Prices Over Time

The average price of utility piped gas per therm in the San Francisco–Oakland–Hayward metro area, a regional proxy that excludes San Joaquin County, has experienced a substantial upward trend over the past decade. From 2015 to 2020, prices remained relatively stable, averaging yearly between $1.40 and $1.60 per therm. However, starting in 2021, costs escalated rapidly due to broader energy market disruptions, peaking at over $2.769 per therm in early 2023. Although there has been some stabilization, the 2024 average still hovered above $2.30, substantially higher than the pre-pandemic average. This sustained increase places additional financial pressure, especially in a region already grappling with high utility and housing costs.

42.3%

increase in regional average piped gas prices per therm from January 2021 ($1.603) to December 2024 ($2.282) highlights the persistent cost pressures on households, even as energy consumption patterns remain relatively stable.

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Average Utility Piped Gas Price per Therm, San Francisco–Oakland–Hayward (historical — discontinued after December 2024)
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