Series P-25, No. 336 April 26,1966 ESTIMATES OF THE POPULATION OF PUERTO RICO AND OTHER OUTLYING AREAS: 1950 TO 1965 (This report supersedes "-"'C7-'=+-"-'7=ii:-,,~?~~' Series P-25) No. ~~3B, whi.(~h shows preliminary intercensal and Sericf3 P-2'j, No. 30() which presents postcensal estimates This. report presents estimates of the tota] totaJ shown by the 19'50 Census was 2)1 milUon. population of the COllh'11onwealth of Puerto Rico These figures do not include certa:Ln other areas and the prinCipal outlying areas of United under United States sovereignty or juri States sovereignty or jurisdiction, for July 1 such as Midway, Wake, and Johnston Is­ of ea2h ~ear, 1950 to 1965, and estimates of lands, whos e total. population numbered a few the p6pu~ation of Puerto Rico by broad age thousand. This report does not deal with the groups, for 1964 and 1965. The estj.mates for other United States population residing outside 1965 ar~ preliminary; they will be revised next the United States, which includes United States year, when more current information on popu­ ci tizens resi.ding in foreign countries and crews lation change becomes available. The other of United States merchant vessels; this group ~utlying areas included are American Samoa, the numbered about million in all according to ;anal Zone, Guam, the Virgin ISlands of the the census count in April 1960. United States, and the Trust Territory of the Puerto RiCO, by far the most populous of Pacific Islands. these areas, had an estimated total. population Estimates of the total resident popula­ of 2,633,000 on July 1, 1965. The other areas tion and of the civilian resident population of each have less than 100,000 inhabitants. The Puerto Rico and the other five outlying areas largest, the Trust Territory of the Pacific listed, for July 1, 1965, with ct1.lJlulative and Islands, COVering the Caroline, Marshall, and average annual growth rates since April 1, Mariana Islands, excluding Guam, had an esti­ 1960, the date of the last census, are given in mated population of 91,900 on July 1, 1965. The table Estimates of the population of these smallest, American Samoa, had 21,400 inhabit­ areas for July 1 of each year, 1950 to 1965, ants at that time. are given in table 2. Estimates of the com­ The population of each of the outl.ying ponents of population change, that is, births, areas grew at a more rapid rate between April deaths, and net migration, for each outlying 960, and July 1, 1965, than during the decade area, for the period April 1, 1960, to July , from April 1, 1950, to April 1, 1960. All of 1964, are given in table 3; similar data for the outlying areas except the Trust Territory the period April 1, 1950, to April 1, 1960, are experienced net out-mi.gration from 1950 to 1960. given in table 4. In the period April 1, 1960, to July 1, 1964, The estimated total population of Puerto the rate of out-migration decreased in some) areas Rico and the other five outlying areas on July 1, (Puerto Rico, American Samoa, and Guam) and net 1965, is 2.9 million; the total for these areas in-migration occurred in others (Virgin Islands shown by the 1960 Census was 2.6 million and the and Canal Zone). For sale by the Superintendent oj Docurrumts, U.S. Government Printirw Office, Washington, D.C., 20402, 15 cents. Annual subscription (Series P-20, P-23, P-25, P-27, P-28 summaries, P-60, and P-65, combined), $4.00; joreign mailing, $5.25. 2 In spite of its high rate of natural increase All data on the Armed Forces are l.lElsed. (excess of births over deaths per 1,000 population), figures provided by the Department of DeJense. fmbstantial net out-migration from Puerto Rico The component, net loss of ci vi.li aUG to tbe Armed between 1950 and 1960 limited its average annual Forces, is important only for Puerto Rico; figures rate of population growth to 0.6 percent in t.his on t,he balanc~e of' i.nduetions, enlistment£;, and. perioci; this rate compares with an annual average discharges for Puerto Ili.co wore obtainod from the rate of 2.2 percent in the period 1960 to 1965, Puerto nican PlannIng Board.. when was only a small net out-migration. The esti.mates of net ctv:i1i.an migraUorJ for The overall growth rate for Puerto FUco tn the the Canal. Zone and tho Vi.rgi.n 1,;lancif3 were elc·· 1960-1965 period (1;~ percent) was fclUbBtantiaLLy veJoped on the llw;Ls of data on GCllOOJ. cnrollmcmt hi grlClr than trlat of the UnIted St,ates (8 percent) a result of its much higher rate of natural i.n ttle elementary graeicf::, trom whi.ch eutimatos of tile net migration rato oJ' C;C1100] -agc) cll:i.ldren incrcaGe. In the 1950··1960 period the overan and tlwn of trw toLa] populati.on were cierivc(l, growtrl rate for Puerto Rico (6 percent) was mucfl Tlli.[l tlle Cenmw Bureau I"l component, McUlod II, lower than that of the Un:L ted States (Hl percent) becaUB8 or tts heavy out-mJgratton. oJ wrltcfl _ ..'-.c ..• __... -.C .. '- __-'._. __ .' 8er:iei.' P.2tJ, No. :'J2~. Uuta on f~c11oo1 enrollment ror th:Ls purpose were provicled tJy tlw Toea:! governm()nts. For }'Iwrl,o 11:Lco anel The est:Lmate of' the civilian population 01' each area except Guam and the Trust Terdtory was pre·· Amerj_can f:)amoa, triO 8st1matec use as the m1grSljj on pared by a variati.on of the component mcrtilOd of component pa:;cenger statistics col.1cct()d llY ttle making postcensal population 8st1mates. .For ttJe government f'or tr18se areas. The migration 8iJt:i­ mate for PU8ri,o flico Jor April to ,Tune, 1960, period since 1960 this method involves (I) 8sti­ mating the civilian population on April 1, 1960, however, is not the sum of the reported monthly figures Jor this period but the sum of centered the census figures for that date, (2) adding 12·-month movIng averages of' the monthly data. civiUan population on April 1, 1960, an estimate of births for the period between the Short-term fluctuations in passenger data may weLl r en ec t t tJ e seas onaJ movement_Q:L.:t.l'.amdBIltB-xa:ther- - . --~ ttJan the movement 01' migrants to a new residence; esti.mate of deaths, (4) adding or subtracting an the movement of' transients wi.l.1 tend to cancel au" estimate of net migration, and (5) subtracting an estimate of the net loss of civiUans to the Armed over longer periods. The s·tatistics tor Puertc Forces. The estimate of the total populati.on of Rico were compiled by the Puerto Rico Planning each area was obtained by adding an estimate of Board. The net migration of' civilians carried 11Y the number of persons in the Armed }/oreeR st,at.i oned military transport is includ.ed on trIO bas:is of in the area on t11e estimate date. data from the Department of Defense. The population of' Guam is esti.mated 11Y a Estimates of births and deaths for Puerto different method from that of most of the other Rico and the Virgin Islands were derived from data outlying areas becamle data on net migration are obtained f'rom the National Center fer Health Sta­ lacking and the large number of' military personnel tistics, U.S. PubUc Healtrl Servi.ce. Data on and other specIal groups located there make it un­ bir·ths and deaths for American Samoa and the Canal wi se to use component Method II wi. th its dependence Zone were provided by the local goverrments of on school enro1J.ment data. The estimates of the these areas, All the data are classified on an population of Guam are based principalJ.y on the re­ occurrence basis only and have not been adjusted sults of' an annual census which excludes the large to a residence basis. The estimates of births in number of' persons residi.ng in military reserva­ Puerto Rico have been adjusted for underregistra­ tions. The annual census is taken by the Of'Hce of' tion by factors obtai.ned by extending the results the CtJief Commissioner from records maintained by of the 1950 Birth Registration Tests to subsequent the Municipal Commissioners. This census excludes years. 1 No adjustment was made for underregistra­ members of the Armed Forces and their dependents, tion of births i.n the Vi.rgin Islands inasmuch as contract employees of' the Armed Porces and their the 1950 Birth Registration Test showed registra­ dependents, and alien labor insi.de mi.1i tary reser­ tion to be complete. No adjustment was made f'or vations. The other data for Guam are supplied by underregistration of deaths in any of the areas. the Imnigration and Naturali.zati.on Service, the Def ense Department, the Governor 01' Guam, and th e Civil Service Commission. (Additional information , This test was conducted by the National Center for Health Statistics in conjunction wIth the 1950 regarding the source 0:[ current data for Guam :Ls Census of Popul.ation. A similar te.st was not COD- given below under the discussion of intercensal ducted in 1960, esti.mates. ) This method appears to have r8sultod 3 some double counting since the sum of the es­ subtracting natural increase from total change. of tile various component groups in tile The second set of estimates of net immigration was po.pulation for April 1960 exceeds trle 1960 Census prepared by distri.buting the decennial net immi­ count of trw total population; tile postcensal esti­ gration evenly over the decade.