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17-1372-CHI
Friday, October 13, 2017

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Consumer Price Index, Chicago-Gary-Kenosha — September 2017

Local prices rose 2.1 percent over the year

The Consumer Price Index for All Urban Consumers (CPI-U) in the Chicago-Gary-Kenosha area rose 0.4 percent in September, the U.S. Bureau of Labor Statistics reported today. Assistant Commissioner for Regional Operations Charlene Peiffer noted that in September the food index edged down 0.1 percent and the energy index increased 2.2 percent. The all items less food and energy index rose 0.4 percent over the month. Among the indexes within the all items less food and energy category, prices were higher for shelter and apparel. (Data in this report are not seasonally adjusted. Accordingly, month-to-month changes may reflect the impact of seasonal influences.)

Over the last 12 months, the Chicago area all items CPI-U increased 2.1 percent. (See chart 1 and table A.) Over the year the food index increased 1.3 percent and energy costs rose 7.6 percent. Energy costs rose primarily due to an increase in gasoline prices. The all items less food and energy index was 1.8 percent higher over the year. (See table 1.)

Food

Food prices edged down 0.1 percent in September. The food at home index (groceries) fell 0.4 percent, while the food away from home (restaurant, cafeteria, and vending purchases) index rose 0.3 percent. Within the food at home group, prices were lower in September for carbonated drinks, pork chops, and potatoes. In contrast, the indexes for other fresh vegetables, uncooked ground beef, and uncooked beef roasts were higher.

From September 2016 to September 2017, the food index increased 1.3 percent. Grocery prices rose 0.9 percent, while food away from home prices rose 1.9 percent over the year.

Energy

The energy index advanced 2.2 percent in September, primarily due to a 5.5-percent increase in gasoline prices. Electricity costs rose 0.2 percent over the month. In contrast, utility (piped) gas service costs fell 1.8 percent.

Over the year, the Chicago area energy index rose 7.6 percent. From September 2016 to September 2017 gasoline prices increased 11.6 percent. Costs for electricity and utility (piped) gas service were up 6.8 percent and 0.3 percent, respectively over the year.

All items less food and energy

The index for all items less food and energy rose 0.4 percent in September. Among the index’s components, prices were higher for shelter (0.6 percent) and apparel (4.3 percent).

Over the year, the index for all items less food and energy increased 1.8 percent. Increases in the indexes for shelter (2.2 percent), recreation (7.6 percent), and medical care (4.2 percent) were major contributing factors.

Table A. Chicago CPI-U 1-month and 12-month percent changes, all items index, not seasonally adjusted
Month 2013 2014 2015 2016 2017
1-month 12-month 1-month 12-month 1-month 12-month 1-month 12-month 1-month 12-month

January

0.2 1.2 0.9 1.2 -0.2 0.4 0.8 0.9 0.7 1.8

February

1.1 2.3 0.5 0.7 0.0 -0.2 -0.2 0.7 0.1 2.2

March

-0.1 0.9 1.1 1.9 0.7 -0.6 0.1 0.2 -0.1 2.0

April

0.0 0.9 0.5 2.4 0.1 -0.9 0.6 0.7 0.4 1.7

May

0.5 1.5 -0.1 1.8 0.3 -0.5 0.0 0.3 0.2 1.8

June

0.1 1.7 0.4 2.0 0.2 -0.7 0.5 0.7 0.0 1.3

July

-0.2 1.7 -0.4 1.9 -0.1 -0.5 -0.8 -0.1 0.0 2.2

August

0.1 1.1 0.1 1.9 0.4 -0.1 0.2 -0.2 0.3 2.3

September

-0.2 0.7 0.0 2.1 -0.3 -0.4 0.6 0.6 0.4 2.1

October

-0.3 0.5 -0.4 2.0 -0.1 -0.2 0.1 0.8    

November

-0.3 0.6 -0.8 1.6 -0.4 0.2 0.2 1.5    

December

-0.3 0.5 -0.4 1.5 -0.6 0.0 -0.2 1.9    

The October 2017 Consumer Price Index for Chicago is scheduled to be released on Wednesday, November 15, 2017.

Consumer Price Index Geographic Revision for 2018

In January 2018, BLS will introduce a new geographic area sample for the Consumer Price Index (CPI). As part of the new sample, the index for this area will be renamed. The first indexes using the new structure will be published in February 2018. Additional information on the geographic revision is available at: www.bls.gov/cpi/additional-resources/geographic-revision-2018.htm.


Technical Note

The Consumer Price Index (CPI) is a measure of the average change in prices over time in a fixed market basket of goods and services. The Bureau of Labor Statistics publishes CPIs for two population groups: (1) a CPI for All Urban Consumers (CPI-U) which covers approximately 89 percent of the total population and (2) a CPI for Urban Wage Earners and Clerical Workers (CPI-W) which covers 28 percent of the total population. The CPI-U includes, in addition to wage earners and clerical workers, groups such as professional, managerial, and technical workers, the self-employed, short-term workers, the unemployed, and retirees and others not in the labor force.

The CPI is based on prices of food, clothing, shelter, and fuels, transportation fares, charges for doctors' and dentists' services, drugs, and the other goods and services that people buy for day-to-day living. Each month, prices are collected in 87 urban areas across the country from about 6,000 housing units and approximately 24,000 retail establishments--department stores, supermarkets, hospitals, filling stations, and other types of stores and service establishments. All taxes directly associated with the purchase and use of items are included in the index.

The index measures price changes from a designated reference date (1982-84) that equals 100.0. An increase of 16.5 percent, for example, is shown as 116.5. This change can also be expressed in dollars as follows: the price of a base period "market basket" of goods and services in the CPI has risen from $10 in 1982-84 to $11.65. For further details see the CPI home page on the Internet at www.bls.gov/cpi and the BLS Handbook of Methods, Chapter 17, The Consumer Price Index, available on the Internet at www.bls.gov/opub/hom/pdf/homch17.pdf.

In calculating the index, price changes for the various items in each location are averaged together with weights that represent their importance in the spending of the appropriate population group. Local data are then combined to obtain a U.S. city average. Because the sample size of a local area is smaller, the local area index is subject to substantially more sampling and other measurement error than the national index. In addition, local indexes are not adjusted for seasonal influences. As a result, local area indexes show greater volatility than the national index, although their long-term trends are quite similar. Note: Area indexes do not measure differences in the level of prices between cities; they only measure the average change in prices for each area since the base period.

The Chicago-Gary-Kenosha, Ill.-Ind.-Wis. consolidated area covered in this release is comprised of Cook, DeKalb, DuPage, Grundy, Kane, Kankakee, Kendall, Lake, McHenry, and Will Counties in Illinois; Lake and Porter Counties in Indiana; and Kenosha County in Wisconsin.

Information in this release will be made available to sensory impaired individuals upon request. Voice phone: (202) 691-5200; Federal Relay Service: (800) 877-8339.

Table 1. Consumer Price Index for All Urban Consumers (CPI-U): Indexes and percent changes for selected periods
Chicago-Gary-Kenosha, IL-IN-WI (1982-84=100 unless otherwise noted)
Item and Group

 
Indexes Percent change from-
Jul.
2017
Aug.
2017
Sep.
2017
Sep.
2016
Jul.
2017
Aug.
2017

Expenditure category

 
 

All items

233.514 234.200 235.177 2.1 0.7 0.4

All items (1967=100)

697.641 699.692 702.611 - - -

Food and beverages

243.386 245.149 244.964 1.4 0.6 -0.1

Food

243.068 244.996 244.644 1.3 0.6 -0.1

Food at home

232.826 235.909 234.902 0.9 0.9 -0.4

Food away from home

252.940 253.003 253.690 1.9 0.3 0.3

Alcoholic beverages

246.352 245.675 247.956 2.4 0.7 0.9

Housing

241.360 241.825 242.995 2.1 0.7 0.5

Shelter

302.201 302.997 304.810 2.2 0.9 0.6

Rent of primary residence(1)

321.965 322.751 324.447 3.2 0.8 0.5

Owners' equiv. rent of residences(1)(2)

307.155 307.579 309.050 2.2 0.6 0.5

Owners' equiv. rent of primary residence(1)(2)

307.155 307.579 309.050 2.2 0.6 0.5

Fuels and utilities

209.382 208.785 207.884 4.2 -0.7 -0.4

Household energy

165.919 165.293 164.349 4.1 -0.9 -0.6

Energy services(1)

169.326 168.648 167.639 4.2 -1.0 -0.6

Electricity(1)

162.332 163.078 163.356 6.8 0.6 0.2

Utility (piped) gas service(1)

165.876 162.964 159.971 0.3 -3.6 -1.8

Household furnishings and operations

90.022 90.187 90.768 -1.9 0.8 0.6

Apparel

86.214 88.344 92.127 -0.4 6.9 4.3

Transportation

180.240 180.249 182.392 2.1 1.2 1.2

Private transportation

177.533 177.959 179.771 2.4 1.3 1.0

Motor fuel

217.704 223.744 236.090 11.6 8.4 5.5

Gasoline (all types)

215.557 221.547 233.691 11.6 8.4 5.5

Gasoline, unleaded regular(3)

206.487 212.454 224.187 11.8 8.6 5.5

Gasoline, unleaded midgrade(3)(4)

242.664 248.336 261.938 10.9 7.9 5.5

Gasoline, unleaded premium(3)

242.568 248.044 260.718 10.5 7.5 5.1

Medical care

502.061 502.922 501.161 4.2 -0.2 -0.4

Recreation(5)

116.208 115.755 115.179 7.6 -0.9 -0.5

Education and communication(5)

142.370 143.216 143.088 -0.3 0.5 -0.1

Other goods and services

386.977 385.543 384.766 0.1 -0.6 -0.2
 

Commodity and service group

 
 

All items

233.514 234.200 235.177 2.1 0.7 0.4

Commodities

165.247 166.368 167.633 1.4 1.4 0.8

Commodities less food & beverages

125.786 126.594 128.379 1.4 2.1 1.4

Nondurables less food & beverages

167.476 170.015 174.499 4.1 4.2 2.6

Durables

87.182 86.692 86.418 -2.2 -0.9 -0.3

Services

298.359 298.606 299.284 2.5 0.3 0.2
 

Special aggregate indexes

 
 

All items less medical care

221.980 222.660 223.758 1.9 0.8 0.5

All items less shelter

210.359 211.010 211.699 2.1 0.6 0.3

Commodities less food

130.108 130.887 132.703 1.5 2.0 1.4

Nondurables

205.943 208.132 210.398 2.6 2.2 1.1

Nondurables less food

172.709 175.082 179.466 4.0 3.9 2.5

Services less rent of shelter(2)

309.785 309.448 308.929 2.9 -0.3 -0.2

Services less medical care services

283.512 283.734 284.781 2.6 0.4 0.4

Energy

185.685 187.641 191.843 7.6 3.3 2.2

All items less energy

239.964 240.539 241.226 1.7 0.5 0.3

All items less food and energy

240.247 240.578 241.456 1.8 0.5 0.4

Footnotes
(1) This index series was calculated using a Laspeyres estimator. All other item stratum index series were calculated using a geometric means estimator.
(2) Index is on a December 1982=100 base.
(3) Special index based on a substantially smaller sample.
(4) Indexes on a December 1993=100 base.
(5) Indexes on a December 1997=100 base.
 

- Data not available.
Note: Index applies to a month as a whole, not to any specific date. Data not seasonally adjusted.
 

 

Last Modified Date: Friday, October 13, 2017