The Costa Rica 1973 census was elaborated by then Dirección General de Estadística y Censos, predecessor of current National Institute of Statistics and Census. The total population was at the moment 1,871,780.

Results by canton

Province	Cantón	Population as of 1973 census	Population as of 1963 census	Change	Percent change
San José	San José	215,441	168,938	46,503	27.53%
San José	Escazú	25,026	14,250	10,776	75.62%
San José	Desamparados	74,272	33,845	40,427	119.45%
San José	Puriscal	24,150	23,690	460	1.94%
San José	Tarrazú	7,542	5,392	2,150	39.87%
San José	Aserrí	20,091	13,609	6,482	47.63%
San José	Mora	10,733	8,938	1,795	20.08%
San José	Goicoechea	61,607	44,110	17,497	39.67%
San José	Santa Ana	14,499	9,026	5,473	60.64%
San José	Alajuelita	23,013	10,848	12,165	112.14%
San José	Vázquez de Coronado	16,336	10,615	5,721	53.90%
San José	Acosta	14,385	13,092	1,293	9.88%
San José	Tibás	35,602	23,946	11,656	48.68%
San José	Moravia	19,548	11,642	7,906	67.91%
San José	Montes de Oca	33,633	24,043	9,590	39.89%
San José	Turrubares	4,709	5,496	−787	-14.32%
San José	Dota	4,375	3,718	657	17.67%
San José	Curridabat	15,591	9,491	6,100	64.27%
San José	Pérez Zeledón	67,089	47,319	19,770	41.78%
San José	León Cortés Castro	7,521	5,650	1,871	33.12%
Alajuela	Alajuela	96,325	64,398	31,927	49.58%
Alajuela	San Ramón	33,155	25,925	7,230	27.89%
Alajuela	Grecia	31,806	43,923	−12,117	-27.59%
Alajuela	San Mateo	2,969	3,388	−419	-12.37%
Alajuela	Atenas	12,610	11,018	1,592	14.45%
Alajuela	Naranjo	19,721	16,414	3,307	20.15%
Alajuela	Palmares	14,495	12,283	2,212	18.01%
Alajuela	Poás	10,191	8,179	2,012	24.60%
Alajuela	Orotina	8,479	7,093	1,386	19.54%
Alajuela	San Carlos	54,952	36,586	18,366	50.20%
Alajuela	Zarcero	6,342	4,919	1,423	28.93%
Alajuela	Sarchí	8,707	6,546	2,161	33.01%
Alajuela	Upala	15,971	-	-	-
Alajuela	Los Chiles	5,596	-	-	-
Alajuela	Guatuso	4,713	-	-	-
Cartago	Cartago	65,310	46,722	18,588	39.78%
Cartago	Paraíso	22,281	18,389	3,892	21.16%
Cartago	La Unión	23,352	14,074	9,278	65.92%
Cartago	Jiménez	11,523	10,439	1,084	10.38%
Cartago	Turrialba	43,202	37,620	5,582	14.84%
Cartago	Alvarado	7,484	6,465	1,019	15.76%
Cartago	Oreamuno	17,517	12,035	5,482	45.55%
Cartago	El Guarco	14,030	9,689	4,341	44.80%
Heredia	Heredia	36,487	30,919	5,568	18.01%
Heredia	Barva	12,864	8,504	4,360	51.27%
Heredia	Santo Domingo	17,423	11,348	6,075	53.53%
Heredia	Santa Bárbara	10,738	8,127	2,611	32.13%
Heredia	San Rafael	16,013	9,069	6,944	76.57%
Heredia	San Isidro	5,979	4,061	1,918	47.23%
Heredia	Belén	8,538	4,781	3,757	78.58%
Heredia	Flores	6,524	4,162	2,362	56.75%
Heredia	San Pablo	6,660	4,092	2,568	62.76%
Heredia	Sarapiquí	12,618	-	-	-
Guanacaste	Liberia	21,781	18,030	3,751	20.80%
Guanacaste	Nicoya	37,185	36,276	909	2.51%
Guanacaste	Santa Cruz	29,739	23,576	6,163	26.14%
Guanacaste	Bagaces	9,828	9,836	−8	-0.08%
Guanacaste	Carrillo	14,893	11,396	3,497	30.69%
Guanacaste	Cañas	12,779	9,117	3,662	40.17%
Guanacaste	Abangares	11,633	10,189	1,444	14.17%
Guanacaste	Tilarán	12,563	12,097	466	3.85%
Guanacaste	Nandayure	12,058	12,038	20	0.17%
Guanacaste	La Cruz	8,333	-	-	-
Guanacaste	Hojancha	7,899	-	-	-
Puntarenas	Puntarenas	65,562	55,592	9,970	17.93%
Puntarenas	Esparza	12,095	9,175	2,920	31.83%
Puntarenas	Buenos Aires	20,104	11,042	9,062	82.07%
Puntarenas	Montes de Oro	6,979	6,616	363	5.49%
Puntarenas	Osa	24,613	17,574	7,039	40.05%
Puntarenas	Quepos	14,473	19,942	−5,469	-27.42%
Puntarenas	Golfito	42,510	36,567	5,943	16.25%
Puntarenas	Coto Brus	19,971	-	-	-
Puntarenas	Parrita	11,901	-	-	-
Limón	Limón	40,830	40,141	689	1.72%
Limón	Pococí	28,688	16,927	11,761	69.48%
Limón	Siquirres	18,133	11,317	6,816	60.23%
Limón	Talamanca	5,431	-	-	-
Limón	Matina	10,489	-	-	-
Limón	Guácimo	11,572	-	-	-

References