Single-Year Tables	Historical data	Projected

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Table IV.A1.—Historical and Projected Social Security Area Population
Based on the Intermediate Assumptions of the 2018 OASDI Trustees Report
As of July 1, 1974-2042
[In thousands]

		Age groupsa
Year		0-17		18-34		35-49		50-64		65-74		75 or older		Total, all ages
Historical data:
1974		70,925		59,800		36,393		32,825		13,860		8,906		222,709
1975		69,932		61,782		36,367		33,189		14,175		9,132		224,578
1976		68,919		63,720		36,481		33,471		14,496		9,411		226,498
1977		68,030		65,464		36,813		33,747		14,830		9,679		228,564
1978		67,233		67,055		37,353		33,987		15,183		9,934		230,744
1979		66,530		68,640		37,968		34,142		15,512		10,211		233,003
1980		65,966		70,189		38,525		34,261		15,813		10,495		235,250
1981		65,522		71,416		39,339		34,327		16,092		10,793		237,489
1982		65,187		72,124		40,715		34,282		16,370		11,112		239,790
1983		64,988		72,582		42,266		34,192		16,611		11,437		242,076
1984		64,962		72,938		43,766		34,102		16,833		11,744		244,345
1985		65,121		73,158		45,278		33,968		17,102		12,049		246,676
1986		65,380		73,276		46,845		33,800		17,408		12,351		249,061
1987		65,642		73,346		48,482		33,678		17,688		12,647		251,482
1988		65,918		73,403		50,146		33,636		17,918		12,944		253,965
1989		66,340		73,307		51,879		33,680		18,106		13,263		256,576
1990		67,163		72,943		53,673		33,788		18,320		13,605		259,491
1991		68,296		72,328		55,492		33,988		18,573		13,939		262,616
1992		69,419		71,587		57,226		34,414		18,790		14,269		265,705
1993		70,443		70,873		58,808		35,041		18,947		14,588		268,699
1994		71,331		70,181		60,410		35,703		19,045		14,900		271,569
1995		72,049		69,528		62,119		36,311		19,080		15,238		274,325
1996		72,620		68,983		63,589		37,169		19,056		15,593		277,009
1997		73,032		68,589		64,588		38,527		18,979		15,950		279,664
1998		73,315		68,356		65,435		40,054		18,865		16,279		282,304
1999		73,561		68,254		66,272		41,545		18,736		16,575		284,943
2000		73,870		68,359		66,912		43,043		18,648		16,855		287,687
2001		74,213		68,688		67,326		44,579		18,610		17,126		290,541
2002		74,561		69,104		67,534		46,191		18,627		17,366		293,383
2003		74,877		69,537		67,578		47,833		18,723		17,588		296,135
2004		75,197		69,968		67,586		49,523		18,893		17,804		298,971
2005		75,602		70,442		67,696		51,308		19,136		18,020		302,204
2006		76,072		70,987		67,750		53,104		19,496		18,226		305,635
2007		76,463		71,519		67,386		54,756		20,066		18,411		308,600
2008		76,639		71,953		66,577		56,177		20,815		18,549		310,709
2009		76,734		72,496		65,682		57,597		21,554		18,689		312,752
2010		76,710		73,230		64,901		59,230		22,165		18,885		315,122
2011		76,507		73,952		64,164		60,644		22,969		19,072		317,308
2012		76,313		74,423		63,486		61,532		24,166		19,279		319,200
2013		76,149		74,778		62,901		62,265		25,381		19,545		321,020
2014		76,091		75,244		62,507		63,018		26,502		19,833		323,194
2015		76,115		75,659		62,463		63,603		27,630		20,143		325,613
2016b		76,201		76,095		62,749		63,961		28,743		20,529		328,279
2017b		76,315		76,631		63,168		64,136		29,785		21,082		331,117
Projected:
2018		76,401		77,214		63,587		64,210		30,745		21,764		333,920
2019		76,526		77,842		63,900		64,265		31,784		22,422		336,739
2020		76,711		78,343		64,114		64,368		32,947		23,014		339,497
2021		76,919		78,806		64,366		64,394		33,959		23,788		342,232
2022		77,157		79,271		64,819		64,126		34,694		24,900		344,966
2023		77,444		79,663		65,525		63,651		35,361		26,062		347,706
2024		77,749		80,007		66,400		63,109		36,088		27,136		350,489
2025		78,038		80,296		67,374		62,529		36,843		28,209		353,288
2026		78,357		80,542		68,385		61,961		37,529		29,306		356,080
2027		78,804		80,724		69,272		61,516		38,087		30,444		358,848
2028		79,389		80,841		70,015		61,180		38,551		31,600		361,575
2029		80,068		80,936		70,614		60,956		38,902		32,778		364,254
2030		80,799		81,020		71,028		60,994		39,063		33,976		366,880
2031		81,541		81,115		71,372		61,250		38,997		35,175		369,449
2032		82,268		81,241		71,691		61,609		38,754		36,395		371,959
2033		82,987		81,353		72,037		61,975		38,483		37,574		374,409
2034		83,738		81,392		72,452		62,246		38,267		38,702		376,798
2035		84,509		81,365		72,858		62,444		38,120		39,829		379,125
2036		85,261		81,349		73,230		62,690		37,964		40,896		381,390
2037		85,963		81,411		73,557		63,131		37,661		41,871		383,592
2038		86,606		81,492		73,839		63,816		37,214		42,766		385,734
2039		87,171		81,603		74,052		64,663		36,752		43,575		387,816
2040		87,638		81,770		74,173		65,606		36,421		44,233		389,841
2041		88,000		81,966		74,313		66,585		36,250		44,699		391,813
2042		88,269		82,173		74,567		67,447		36,241		45,038		393,735
a Age as of last birthday.
b Estimated.
Notes:
Totals do not necessarily equal the sums of rounded components. Historical data are subject to revision.