Riverside inflation calculator: CPI-U since 2017

The CPI-U for Riverside-San Bernardino-Ontario, CA, published by the BLS in odd months from December 2017. Enter an amount and two dates in that range.

U.S. average, a metro area, a region or a city-size class

Value in September 2026

$139.17

$100.00 in 2018 average buys what $139.17 buys in September 2026, Riverside.

Cumulative price change+39.2 %
Average per year+4.11 %
Index, 2018 average102.732
Index, September 2026142.969
U.S. average over the same dates$134.18 (+34.2 %)
BLS seriesCUURS49CSA0
How this is computed

Prepared by Radif Partners · How the figures are built · BLS series CUURS49CSA0, priced in odd months

Riverside-San Bernardino-Ontario prices rose 3.6 % over the 12 months to September 2026, against 3.7 % for the U.S. city average and 3.4 % for the West region. It is one of 3 metro series here that only begin in 2017: it starts in December 2017, and that month is also its base, December 2017=100. The level therefore reads almost like a percentage. At 142.969 in September 2026, it says Riverside prices are 43.0 % above December 2017. Over the same stretch, Los Angeles rose 38.4 % and the nation 36.7 %. In the latest year, recreation ran furthest above its national rate, at +7.3 % against +2.8 %, and energy was +20.9 %. The fastest Riverside year so far is 2022, at 8.7 %. Riverside is priced in odd months, so the 2025 lapse in appropriations left its series whole. The next index, for November 2026, comes on December 10, 2026.

An index you can read at a glance

Most local indexes are set to 100 over 1982-84, so their level means little on its own. Riverside is different. Because its base is December 2017=100, its first month, the index minus 100 is the price rise since the start: 142.969 today means 43.0 %. For any other pair of dates, divide the later index by the earlier one, or let the calculator do it.

The same base is used by the census division indexes the BLS added with its 2018 area revision. The four regions and most metros keep their older bases, which is why you should compare areas in percent changes, not in index points.

Riverside, Los Angeles and San Diego since 2017

Since December 2017, $1,000 has grown to $1,430 on Riverside prices, $1,384 on Los Angeles prices and $1,430 on San Diego prices. The West region gives $1,388 and the national index $1,367. On the latest 12 months, Riverside was below Los Angeles (3.7 %) and below San Diego (4.7 %).

Riverside or Los Angeles: same years, two indexes

Since the 2018 average

4.3 points

Riverside, $1,000 becomes$1,392 (September 2026)
Los Angeles, $1,000 becomes$1,349 (September 2026)
Per year, Riverside+4.11 %
Per year, Los Angeles+3.71 %
Open the full calculator →

Where Riverside differs from the nation now

5 of the 9 major Riverside groups rose faster than their national counterparts over the latest 12 months. The widest gap was in recreation; at the other end, with a shortfall, came education and communication (-0.5 % against +2.3 %). Transportation was +7.7 %, shelter +2.5 %, food at home +3.7 % and core prices +2.0 %. Every Riverside group starts in December 2017, like the all-items index, so group comparisons only go back that far.

Odd months, untouched by the 2025 gap

The BLS prices Riverside in January, March, May, July, September and November. During the lapse in appropriations no prices were collected anywhere, and every October 2025 index is blank, but October was never a Riverside month. Its November 2025 index was priced and the 2025 annual average uses the usual six months. An even month typed into the calculator falls back on the Riverside index of the month before.

Record years

With full annual averages from 2019, Riverside has a short history. Its peak is 8.7 % in 2022; its lowest rate 1.9 % in 2020. It beat the West region in 6 of 7 years (2019, 2020, 2021, 2022, 2023, 2025). With so few annual changes, one unusual year weighs heavily in any average you take over the whole series.

Riverside CPI by spending group

Riverside-San Bernardino-Ontario, CA, CPI-U not seasonally adjusted. All items: base December 2017=100; each group keeps the base period of its own BLS series, so compare the changes, not the levels.
IndexLevelLatest month12-month change
All items142.969September 2026+3.6 %
Housing149.81September 2026+2.5 %
Shelter150.387September 2026+2.5 %
Food and beverages144.634September 2026+3.0 %
Food at home139.192September 2026+3.7 %
Energy190.37September 2026+20.9 %
Transportation154.849September 2026+7.7 %
Medical care139.53September 2026+1.6 %
Apparel130.33September 2026+4.9 %
Recreation121.679September 2026+7.3 %
Education and communication101.852September 2026-0.5 %
Other goods and services129.024September 2026+1.5 %
All items less food and energy138September 2026+2.0 %

Riverside inflation by year

Annual averages published by the BLS.
YearAnnual averageChangeDecember to December
2025137.293+3.3 %not priced
2024132.932+2.6 %not priced
2023129.545+4.7 %not priced
2022123.784+8.7 %not priced
2021113.875+5.8 %not priced
2020107.672+1.9 %not priced
2019105.697+2.9 %not priced

Questions people ask

Is there a CPI for Riverside and San Bernardino?

Yes. The BLS publishes a CPI-U for Riverside-San Bernardino-Ontario, CA, one of its 23 metro indexes, priced in odd months since December 2017. The latest figure is 142.969 for September 2026, up 3.6 % from a year earlier. It is separate from the Los Angeles index.

When does the Riverside CPI start?

In December 2017, which is also its base period: the index equals 100 in that month. Riverside is one of the 23 metros the BLS publishes since its 2018 area revision, which cut the sample from 87 to 75 primary sampling units. No earlier Riverside series exists on this site.

What index should I use for a Riverside amount from before 2018?

The Riverside index cannot reach before December 2017. For an older amount, use the West region, published since 1966, or the Los Angeles index if a contract named it. The calculator moves an early date to the first Riverside index and tells you that it did.

How do I read the Riverside index level?

Subtract 100. Since the base is the first month, December 2017, a level of 142.969 means prices are 43.0 % higher than then. Between two later dates, divide one index by the other. Do not compare the level with a metro on a 1982-84 base.

Keep going

Los Angeles inflation

+3.7 % over the 12 months to September 2026, from the Los Angeles-Long Beach-Anaheim, CA CPI-U.

San Diego inflation

+4.7 % over the 12 months to September 2026, from the San Diego-Carlsbad, CA CPI-U.

West region inflation

+3.4 % over the 12 months to September 2026, from the West region CPI-U.

CPI by city

The 23 metro areas the BLS publishes, their rhythm, latest month and 12-month inflation, side by side.

Energy inflation

Gasoline, electricity and natural gas in the CPI: the 2026 jump, energy by metro, and its weight in the basket.

Official sources for this page

Prepared by

Independent publisher of inflation calculators built month by month from the CPI-U indexes of the 23 metro areas, 4 regions and 2 city-size classes

Indexes last loaded on · Editorial policy · Contact

Results apply the published CPI indexes to the amount you type. An index tracks the average prices paid by urban consumers in an area, not your own budget, and it does not compare price levels between cities. A month the BLS did not publish is never filled in: the calculator names the index it uses instead.

Indexes through September 2026, BLS files read on