Inflation by City

Inflation can vary widely by city, even within the United States. Here's how some cities fared in 1930 to 1929 (figures shown are purchasing power equivalents of $1):

• Seattle, Washington: -0.32% average rate, $1 → $1.00, cumulative change of -0.32%
• Houston, Texas: -0.69% average rate, $1 → $0.99, cumulative change of -0.69%
• Boston, Massachusetts: -0.71% average rate, $1 → $0.99, cumulative change of -0.71%
• Chicago, Illinois: -1.09% average rate, $1 → $0.99, cumulative change of -1.09%
• Philadelphia, Pennsylvania: -1.12% average rate, $1 → $0.99, cumulative change of -1.12%
• New York: -1.31% average rate, $1 → $0.99, cumulative change of -1.31%
• San Francisco, California: -1.40% average rate, $1 → $0.99, cumulative change of -1.40%
• Detroit, Michigan: -1.67% average rate, $1 → $0.98, cumulative change of -1.67%
• Atlanta, Georgia: -2.86% average rate, $1 → $0.97, cumulative change of -2.86%

Seattle, Washington experienced the highest rate of inflation during the 1 years between 1929 and 1930 (-0.32%).

Atlanta, Georgia experienced the lowest rate of inflation during the 1 years between 1929 and 1930 (-2.86%).

Note that some locations showing 0% inflation may have not yet reported latest data.

Inflation by Country

Inflation can also vary widely by country. For comparison, in the UK £1.00 in 1930 would be equivalent to £1.03 in 1929, an absolute change of £0.03 and a cumulative change of 2.89%.

In Canada, CA$1.00 in 1930 would be equivalent to CA$1.01 in 1929, an absolute change of CA$0.01 and a cumulative change of 1.00%.

Compare these numbers to the US's overall absolute change of $0.02 and total percent change of 2.40%.

Inflation by Spending Category

CPI is the weighted combination of many categories of spending that are tracked by the government. Breaking down these categories helps explain the main drivers behind price changes.

This chart shows the average rate of inflation for select CPI categories between 1930 and 1929.

Compare these values to the overall average of -2.34% per year:

For all these visualizations, it's important to note that not all categories may have been tracked since 1930. This table and charts use the earliest available data for each category.

How to calculate inflation rate for $1, 1929 to 1930

Our calculations use the following inflation rate formula to calculate the change in value between 1929 and 1930:

Then plug in historical CPI values. The U.S. CPI was 16.7 in the year 1930 and 17.1 in 1929:

$1 in 1930 has the same "purchasing power" or "buying power" as $1.02 in 1929.

To get the total inflation rate for the 1 years between 1929 and 1930, we use the following formula:

Plugging in the values to this equation, we get:

Data source & citation

Raw data for these calculations comes from the Bureau of Labor Statistics' Consumer Price Index (CPI), established in 1913. Price index data from 1774 to 1912 is sourced from a historical study conducted by political science professor Robert Sahr at Oregon State University and from the American Antiquarian Society. Price index data from 1634 to 1773 is from the American Antiquarian Society, using British pound equivalents.

» Read more about inflation and investment.