Best Air Quality Cities in Costa Rica

Cities with the best air quality in Costa Rica

Go to Overview
Most Polluted CitiesBest Air Quality Cities

Real-time air quality rankings for 100 cities across Costa Rica. Browse the cleanest cities in Costa Rica ranked by AQI.

1

San Isidro de El General

Costa Rica

16

AQI

2

Palmares

Costa Rica

16

AQI

3

Upala

Costa Rica

16

AQI

4

Los Chiles

Costa Rica

17

AQI

5

Liberia

Costa Rica

18

AQI

6

La Fortuna

Costa Rica

18

AQI

7

Río Claro

Costa Rica

18

AQI

8

Siquirres

Costa Rica

19

AQI

9

Quesada

Costa Rica

19

AQI

10

Aguas Zarcas

Costa Rica

19

AQI

11

Turrialba

Costa Rica

19

AQI

12

Buenos Aires

Costa Rica

19

AQI

13

Florencia

Costa Rica

19

AQI

14

Puerto Viejo

Costa Rica

19

AQI

15

Río Cuarto

Costa Rica

19

AQI

16

Pital

Costa Rica

19

AQI

17

Palmar Norte

Costa Rica

19

AQI

18

Venecia

Costa Rica

19

AQI

19

Quepos

Costa Rica

20

AQI

20

Bagaces

Costa Rica

20

AQI

21

Limón

Costa Rica

21

AQI

22

Guápiles

Costa Rica

21

AQI

23

Neily

Costa Rica

21

AQI

24

San Vito

Costa Rica

21

AQI

25

Matina

Costa Rica

21

AQI

26

Santa Cruz

Costa Rica

22

AQI

27

Belén

Costa Rica

22

AQI

28

San José

Costa Rica

23

AQI

29

Heredia

Costa Rica

23

AQI

30

Cartago

Costa Rica

23

AQI

31

Pavas

Costa Rica

23

AQI

32

San Francisco

Costa Rica

23

AQI

33

Hatillo

Costa Rica

23

AQI

34

San Rafael

Costa Rica

23

AQI

35

San Sebastián

Costa Rica

23

AQI

36

Desamparados

Costa Rica

23

AQI

37

Barreal

Costa Rica

23

AQI

38

San Vicente

Costa Rica

23

AQI

39

Desamparados

Costa Rica

23

AQI

40

Curridabat

Costa Rica

23

AQI

41

Mercedes Norte

Costa Rica

23

AQI

42

Uruca

Costa Rica

23

AQI

43

Aserrí

Costa Rica

23

AQI

44

San Rafael

Costa Rica

23

AQI

45

San Pedro

Costa Rica

23

AQI

46

San Rafael

Costa Rica

23

AQI

47

San Juan

Costa Rica

23

AQI

48

San Diego

Costa Rica

23

AQI

49

El Tejar

Costa Rica

23

AQI

50

Guadalupe

Costa Rica

23

AQI

51

Zapote

Costa Rica

23

AQI

52

San Antonio

Costa Rica

23

AQI

53

San Isidro

Costa Rica

23

AQI

54

El Carmen

Costa Rica

23

AQI

55

Pozos

Costa Rica

23

AQI

56

Paraíso

Costa Rica

23

AQI

57

San Francisco de Dos Ríos

Costa Rica

23

AQI

58

Concepción

Costa Rica

23

AQI

59

Granadilla

Costa Rica

23

AQI

60

San Pablo

Costa Rica

23

AQI

61

Hospital

Costa Rica

23

AQI

62

Colima

Costa Rica

23

AQI

63

Tirrases

Costa Rica

23

AQI

64

Sabanilla

Costa Rica

23

AQI

65

Salitrillos

Costa Rica

23

AQI

66

Alajuelita

Costa Rica

23

AQI

67

Anselmo Llorente

Costa Rica

23

AQI

68

Río Segundo

Costa Rica

23

AQI

69

Ángeles

Costa Rica

23

AQI

70

Oriental

Costa Rica

23

AQI

71

Santa Ana

Costa Rica

23

AQI

72

Catedral

Costa Rica

23

AQI

73

Merced

Costa Rica

23

AQI

74

Llorente

Costa Rica

23

AQI

75

Escazú

Costa Rica

23

AQI

76

San Antonio

Costa Rica

23

AQI

77

Cot

Costa Rica

23

AQI

78

San Antonio

Costa Rica

23

AQI

79

Nicoya

Costa Rica

24

AQI

80

Puntarenas

Costa Rica

25

AQI

81

San José

Costa Rica

25

AQI

82

Alajuela

Costa Rica

25

AQI

83

Palmares

Costa Rica

25

AQI

84

San Rafael

Costa Rica

25

AQI

85

Barranca

Costa Rica

25

AQI

86

Esparza

Costa Rica

25

AQI

87

San Antonio del Tejar

Costa Rica

25

AQI

88

Guácima

Costa Rica

25

AQI

89

El Roble

Costa Rica

25

AQI

90

Colón

Costa Rica

25

AQI

91

Orotina

Costa Rica

25

AQI

92

Grecia

Costa Rica

25

AQI

93

Canoas

Costa Rica

25

AQI

94

Naranjo

Costa Rica

25

AQI

95

Tambor

Costa Rica

25

AQI

96

Puente de Piedra

Costa Rica

25

AQI

97

Santiago

Costa Rica

25

AQI

98

Sabanilla

Costa Rica

25

AQI

99

Parrita

Costa Rica

27

AQI

100

Jacó

Costa Rica

28

AQI

Understanding Air Quality Index

0-50

Good

Air quality is satisfactory, and air pollution poses little or no risk.

51-100

Moderate

Air quality is acceptable. However, there may be a risk for some people.

101-150

Unhealthy for Sensitive Groups

Members of sensitive groups may experience health effects.

151-200

Unhealthy

Everyone may begin to experience health effects.

201-300

Very Unhealthy

Health alert: everyone may experience more serious health effects.

301+

Hazardous

Health warnings of emergency conditions. The entire population is likely to be affected.

The Air Quality Index (AQI) is a scale from 0 to 500 that measures air pollution levels. Poor air quality can cause respiratory issues, cardiovascular problems, and other health concerns.

Source: US EPA Air Quality Index

Last updated: Oct 11, 2026 5:01 PM