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Ozone Implementation
Estimates of the Population of States,
Counties, Places
Note: EPA no longer updates this information, but it may be useful as a reference or resource.Files available in dbf format
City Population in each county and remainder of county pop
Entire Census database (all above and more)
Discussion
Estimates of the Population of States, Counties, Places, and
Minor Civil Divisions: Annual Time Series, July 1, 1991 to July 1,
1996 (includes revised April 1, 1990 census population counts)
http://www.census.gov/population/www/estimates/mcdplace.html
These data were released to the public November 1997.
These data supersede data released with Press Release CB95-179.
Source: Population Estimates Program, Population Division, U.S. Bureau
of the Census, Washington, DC 20233
Contact: Statistical Information Staff, Population Division, U.S.
Bureau of the Census 301-457-2422
Internet Release Date: November 18, 1997
File Layout:
Character Length Field
1-3 3 Summary level code:
040 State
050 State-county
060 State-county-county subdivision
071 State-county-county subdivision-
estimates universe place
157 State-county-estimates universe place
162 State-estimates universe place
4 1 Blank
5-6 2 FIPS state code
7 1 Blank
8-10 3 FIPS county code
11 1 Blank
12-16 5 FIPS entity code(minor civil division)
17 1 Blank
18-22 5 FIPS entity code(place)
23 1 Blank
24-26 3 Census minor civil division code
27 1 Blank
28-31 4 Census place code
32 1 Blank
33-34 2 2 digit CMSA code (6/30/96 definition)
35-38 4 4 digit PMSA code (6/30/96 definition)
39-42 4 4 digit CMSA/MSA/NECMA code (6/30/96
definition)
43 1 Blank
44-53 10 4/1/90 census (revised) population
54-63 10 7/1/91 population estimate
64-73 10 7/1/92 population estimate
74-83 10 7/1/93 population estimate
84-93 10 7/1/94 population estimate
94-103 10 7/1/95 population estimate
104-113 10 7/1/96 population estimate
114 1 Blank
115-116 2 State postal abbreviation
117 1 Blank
118-172 55 Area name
Notes to user:
summary level code field sum
162 is just whole cities in state and has no county id file Pop_city.dbf
157 is whole or part city in county with a "p" and sum of 157 with balance of county (9990)
makes a total county population. file Pcity_co.dbf
040 is just the state population file p_state.dbf
050 is just the county population file pop_cnty.dbf
060 is townships etc ???
071 is ????
file places.dbf contains it all
SU-96-9 Estimates of the Population of States, Counties, Places, and Minor Civil Divisions: Annual Time Series, July 1, 1991 to July 1, 1996
(includes revised April 1, 1990 census population counts)
These data were released to the public November 1997.
These data supersede data released with Press Release CB95-179.
Source: Population Estimates Program, Population Division, U.S. Bureau of the Census, Washington, DC 20233
Contact: Statistical Information Staff, Population Division, U.S. Bureau of the Census 301-457-2422
Internet Release Date: November 18, 1997
example:
4/1/90 7/1/91 7/1/92 7/1/93 7/1/94 7/1/95 7/1/96
040 44 1003464 1004545 1001881 999861 996112 991701 990225 RI Rhode Island
050 44 001 6483 48859 48966 49059 49266 49186 49122 49213 RI Bristol County
060 44 001 05140 005 6480 15849 15834 15828 15824 15817 15815 15841 RI Barrington town
060 44 001 09280 010 6480 21625 21648 21744 21978 21959 21923 21958 RI Bristol town
060 44 001 73760 015 6480 11385 11484 11487 11464 11410 11384 11414 RI Warren town
050 44 003 6483 161135 161770 162403 163056 162967 162326 162185 RI Kent County
060 44 003 18640 005 6480 31083 31328 31580 31854 32034 32128 32221 RI Coventry town
060 44 003 22240 010 6480 11865 11945 11985 12058 12091 12081 12135 RI East Greenwich town
060 44 003 74300 015 6480 85427 85556 85613 85674 85357 84719 84514 RI Warwick city
071 44 003 74300 74300 015 0500 6480 85427 85556 85613 85674 85357 84719 84514 RI Warwick city
060 44 003 77720 020 6480 3492 3635 3743 3853 3972 4116 4195 RI West Greenwich town
060 44 003 78440 025 6480 29268 29306 29482 29617 29513 29282 29120 RI West Warwick town
157 44 003 74300 0500 85427 85556 85613 85674 85357 84719 84514 RI Warwick city
157 44 003 9990 75708 76214 76790 77382 77610 77607 77671 RI Balance of Kent County
050 44 005 87194 88059 86686 85390 83741 82474 82746 RI Newport County
+++++++++++++++++++++++++++++++++++++++++++++++++++
These data were released to the public November 1997.
Documentation to Accompany July 1, 1996 Population Estimates
of Places and Minor Civil Divisions
The Bureau of the Census released these population estimates to the public November 1997. The
estimates incorporate revisions of estimates from previous years and the results of special
censuses and test censuses conducted by the Census Bureau.
In addition, these subcounty population data reflect a number of changes made since the July 1,
1996 population estimates for counties were released in March 1997 (Census Bureau Product
Announcement CB97-39). The July 1, 1996 estimates for Sedgwick County, KS; Wayne
County, MI; and Cumberland County, NJ have been changed. In the three states where these
counties are located, the county population estimates no longer sum to (the previously released)
state totals. Also, new information has led to changes in the estimates for Richland County, SC
for 1994, 1995, and 1996; county data do not sum to the South Carolina population estimate for
any of those years. Finally, there are changes in the populations of six Louisiana parishes:
Bienville Parish, De Soto Parish, Jackson Parish, Natchitoches Parish, Red River Parish, and
Winn Parish; parish data do not sum to the previously released Louisiana state total population.
Note: Information about geographic changes to governmental units in each state from 1990
through 1994 are available at our Internet site with a URL of: .
Census Place/MCD Code - The Census Bureau maintains a coding system that uniquely
identifies all places with four-digit codes and minor civil divisions (MCDs) with three-digit
codes.
Central City - Central cities consist of one or more of the largest population and employment
centers of a metropolitan area and are determined by application of the Office of Management
and Budget's Metropolitan Area standards. There are 550 central cities nationwide, including 12
in Puerto Rico. Almost all central cities are incorporated places, with exceptions including
Honolulu, HI; Arlington, VA; Yarmouth (Barnstable County), MA; Dover (Ocean County), NJ;
and zonas urbanas in Puerto Rico.
Consolidated Cites - A consolidated city is an incorporated place that has combined its
governmental functions with a county or subcounty entity but contains one or more other
semi-independent incorporated places that continue to function as local governments within the
consolidated government. Estimates are not shown for the consolidated city. Instead, estimates
are shown for the consolidated city "remainder," which is the consolidated city minus the semi-
independent places located within the consolidated city.
In 1996, estimates were produced for the following seven consolidated city remainders:
Butte-Silver Bow, MT; Columbus, GA; Indianapolis, IN; Jacksonville, FL; Milford, CT;
Nashville-Davidson, TN; and Athens, GA.
FIPS Code - Federal Information Processing Standards (FIPS) codes uniquely identify each area.
The codes are issued by the National Institute of Standards and Technology of the U.S.
Department of Commerce.
Minor Civil Divisions (MCDs) - A type of governmental unit that is the primary legal
subdivision of a county in 28 states and created to govern or administer an area rather than a
specific population. The several types of MCDs are identified by a variety of terms, such as town,
township, and district, and include both functioning and nonfunctioning governmental units. The
Census Bureau produces population estimates for all functioning MCDs and only for
nonfunctioning MCDs in counties that contain at least one functioning MCD.
Places - A concentration of population either legally bounded as an incorporated place, or
identified by the Census Bureau as a Census Designated Place (CDP). Incorporated places have
political/statistical descriptions of borough (except in Alaska and New York), city, town (except
in New England, New York, and Wisconsin), or village. Population estimates are only produced
for incorporated places (with the exception of the Honolulu, HI CDP and the Arlington, VA
CDP). Incorporated places can cross both county and MCD boundaries. When an incorporated
place is in more than one county or MCD, files organized by county or MCD show the place
name with the designation "pt." (abbreviation for "part").
Population (Census) - The April 1, 1990 census population is a count of the number of persons
residing in an area (resident population) as reported in the 1990 census of population, or as
subsequently revised. Revisions to an area's 1990 census population count may occur as the
result of (1) post-1990 census corrections of political boundaries, geographic misallocations, or
documented under-enumerations or over-enumerations, and (2) geographic boundary updates
made after the 1990 census, resulting from annexations, deannexations, new incorporations,
governmental mergers, and so forth. The closing date to include these two forms of revisions in
this set of estimates was December, 1994.
Population (Estimate) - The estimated population is a computed number of persons living in an
area (resident population) as of July 1. The estimated population at the place level is calculated
by using the change in the number of housing units (from April 1, 1990 to the estimate date) at
the place level to distribute population change separately computed for the county level. County
estimates are calculated using a demographic components of change model that incorporates
information on natural change (births and deaths) and net migration (net domestic migration and
net movement from abroad) in the area since the reference date. Additional information on the
methodology used to produce these population estimates is available on our Internet site with a
URL of .
Remainders - See Consolidated Cities.
Source: U.S. Bureau of the Census
Internet Release Date: November 18, 1997