The Costa Rica 1984 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 2,416,809.

Results by canton

Province	Cantón	Population as of 1984 census	Population as of 1973 census	Change	Percent change
San José	San José	241,464	215,441	26,023	12.08%
San José	Escazú	33,101	25,026	8,075	32.27%
San José	Desamparados	108,824	74,272	34,552	46.52%
San José	Puriscal	23,123	24,150	−1,027	-4.25%
San José	Tarrazú	8,845	7,542	1,303	17.28%
San José	Aserrí	30,588	20,091	10,497	52.25%
San José	Mora	12,584	10,733	1,851	17.25%
San José	Goicoechea	79,931	61,607	18,324	29.74%
San José	Santa Ana	19,605	14,499	5,106	35.22%
San José	Alajuelita	31,390	23,013	8,377	36.40%
San José	Vázquez de Coronado	24,514	16,336	8,178	50.06%
San José	Acosta	14,853	14,385	468	3.25%
San José	Tibás	57,693	35,602	22,091	62.05%
San José	Moravia	33,038	19,548	13,490	69.01%
San José	Montes de Oca	39,065	33,633	5,432	16.15%
San José	Turrubares	4,471	4,709	−238	-5.05%
San José	Dota	4,934	4,375	559	12.78%
San José	Curridabat	31,954	15,591	16,363	104.95%
San José	Pérez Zeledón	82,370	67,089	15,281	22.78%
San José	León Cortés Castro	8,087	7,521	566	7.53%
Alajuela	Alajuela	127,472	96,325	31,147	32.34%
Alajuela	San Ramón	39,963	33,155	6,808	20.53%
Alajuela	Grecia	38,361	31,806	6,555	20.61%
Alajuela	San Mateo	3,783	2,969	814	27.42%
Alajuela	Atenas	15,011	12,610	2,401	19.04%
Alajuela	Naranjo	23,588	19,721	3,867	19.61%
Alajuela	Palmares	17,815	14,495	3,320	22.90%
Alajuela	Poás	13,939	10,191	3,748	36.78%
Alajuela	Orotina	10,494	8,479	2,015	23.76%
Alajuela	San Carlos	75,576	54,952	20,624	37.53%
Alajuela	Zarcero	7,005	6,342	663	10.45%
Alajuela	Sarchí	10,716	8,707	2,009	23.07%
Alajuela	Upala	26,061	15,971	10,090	63.18%
Alajuela	Los Chiles	11,404	5,596	5,808	103.79%
Alajuela	Guatuso	6,774	4,713	2,061	43.73%
Cartago	Cartago	87,125	65,310	21,815	33.40%
Cartago	Paraíso	27,823	22,281	5,542	24.87%
Cartago	La Unión	41,005	23,352	17,653	75.60%
Cartago	Jiménez	11,861	11,523	338	2.93%
Cartago	Turrialba	50,567	43,202	7,365	17.05%
Cartago	Alvarado	8,338	7,484	854	11.41%
Cartago	Oreamuno	24,145	17,517	6,628	37.84%
Cartago	El Guarco	20,807	14,030	6,777	48.30%
Heredia	Heredia	54,896	36,487	18,409	50.45%
Heredia	Barva	18,933	12,864	6,069	47.18%
Heredia	Santo Domingo	23,985	17,423	6,562	37.66%
Heredia	Santa Bárbara	16,643	10,738	5,905	54.99%
Heredia	San Rafael	22,871	16,013	6,858	42.83%
Heredia	San Isidro	8,528	5,979	2,549	42.63%
Heredia	Belén	11,993	8,538	3,455	40.47%
Heredia	Flores	9,015	6,524	2,491	38.18%
Heredia	San Pablo	11,802	6,660	5,142	77.21%
Heredia	Sarapiquí	18,909	12,618	6,291	49.86%
Guanacaste	Liberia	28,067	21,781	6,286	28.86%
Guanacaste	Nicoya	36,626	37,185	−559	-1.50%
Guanacaste	Santa Cruz	31,133	29,739	1,394	4.69%
Guanacaste	Bagaces	10,103	9,828	275	2.80%
Guanacaste	Carrillo	18,475	14,893	3,582	24.05%
Guanacaste	Cañas	17,284	12,779	4,505	35.25%
Guanacaste	Abangares	12,575	11,633	942	8.10%
Guanacaste	Tilarán	14,586	12,563	2,023	16.10%
Guanacaste	Nandayure	9,604	12,058	−2,454	-20.35%
Guanacaste	La Cruz	10,876	8,333	2,543	30.52%
Guanacaste	Hojancha	5,879	7,899	−2,020	-25.57%
Puntarenas	Puntarenas	74,135	65,562	8,573	13.08%
Puntarenas	Esparza	14,998	12,095	2,903	24.00%
Puntarenas	Buenos Aires	27,716	20,104	7,612	37.86%
Puntarenas	Montes de Oro	7,444	6,979	465	6.66%
Puntarenas	Osa	26,294	24,613	1,681	6.83%
Puntarenas	Quepos	13,319	14,473	−1,154	-7.97%
Puntarenas	Golfito	29,043	42,510	−13,467	-31.68%
Puntarenas	Coto Brus	31,650	19,971	11,679	58.48%
Puntarenas	Parrita	9,774	11,901	−2,127	-17.87%
Puntarenas	Corredores	28,366	-	-	-
Puntarenas	Garabito	3,144	-	-	-
Limón	Limón	52,602	40,830	11,772	28.83%
Limón	Pococí	44,187	28,688	15,499	54.03%
Limón	Siquirres	29,079	18,133	10,946	60.37%
Limón	Talamanca	11,013	5,431	5,582	102.78%
Limón	Matina	14,723	10,489	4,234	40.37%
Limón	Guácimo	16,472	11,572	4,900	42.34%

References