Buenos Aires vs Cartagena
In short
Calculated from the figures below, with no overall “who wins” score.
Rent
✓in Buenos Aires cheaper — −49%
Family budget
✓in Cartagena cheaper — −39%
Ready-made house
✓in Buenos Aires cheaper — −48%
In numbers
Exchange rate as of the date each figure was checked.
House or apartment rent
per month✓Buenos Aires≈ $752–899ARS 1,176,184–1,406,326cheaper by 49%Cartagena≈ $1,070–2,140COP 3.5–7.04MPiped gas
✓Buenos Aires≈ $0.2 per m³ARS 316.16 per m³cheaper by 74%Cartagena≈ $0.77 per m³COP 2,539 per m³Family groceries
per monthBuenos Aires≈ $630ARS 985,617✓Cartagena≈ $290COP 953,232cheaper by 54%Family budget
per monthBuenos Aires≈ $1,060ARS 1,651,798✓Cartagena≈ $639COP 2,099,220cheaper by 39%Winter
averageBuenos Aires12 °C12 °CCartagena24–31 °C24–31 °CPrecipitation
per yearBuenos Aires1,260 mm1,260 mmCartagena1,017 mm1,017 mmReady-made house
purchase✓Buenos Aires$151–200k$151–200kcheaper by 48%Cartagena≈ $228–453kCOP 750–1,487.5M
By topic
A quick look at each city. Details and sources are on the city page.
Housing
Buenos Aires
A flat with two bedrooms: Caballito 1.18 million pesos a month, Palermo 1.31 million, Núñez 1.41 million. Expensas on top.
OfficialIDECBA - Dynamics of the apartment rental market, Buenos Aires, Q2 2026 (Informe de resultados 2049) · checked 28 Sep 2026
A studio (monoambiente, about 30 m²) averages 565,658 pesos a month; a one-bedroom of 43 m² averages 764,485 pesos. Small flats vary little between barrios.
OfficialIDECBA - Dynamics of the apartment rental market, Buenos Aires, Q2 2026 (Informe de resultados 2049) · checked 28 Sep 2026
Three quarters of listings are homes with one bedroom at most. A family with two children can use about a quarter of the market.
OfficialIDECBA - Dynamics of the apartment rental market, Buenos Aires, Q2 2026 (Informe de resultados 2049) · checked 28 Sep 2026
A quarter of listings are priced in dollars, and for four-room flats it is already 44%. The further north the district, the more often it is dollars.
OfficialIDECBA - Dynamics of the apartment rental market, Buenos Aires, Q2 2026 (Informe de resultados 2049) · checked 28 Sep 2026
Cartagena
A three-bedroom apartment by listings: median 5.5 million pesos a month (about 1,640 dollars), half within 3.5-7 million. In stratum 6 the median is 6.8 million.
SpecialistFincaraíz: three-bedroom apartments for rent in Cartagena · checked 6 Oct 2026
A resale three-bedroom by listings: median 975 million pesos (about 290 thousand dollars), half within 750 million - 1.49 billion. Mostly Bocagrande and Castillogrande.
SpecialistFincaraíz: three-bedroom apartments for sale in Cartagena · checked 6 Oct 2026
Money and prices
Buenos Aires
The city's basket for a family with two children is 2.08 million pesos a month, but without rent. With the rent of a three-room flat it comes to 3.3–3.5 million.
OfficialIDECBA - Poverty lines and consumer baskets of the City of Buenos Aires, August 2026 (Informe de resultados 2054) · checked 28 Sep 2026
The food basket for a family of four is 985,617 pesos a month at city prices (August 2026). Up 34.7% over the year.
OfficialIDECBA - Poverty lines and consumer baskets of the City of Buenos Aires, August 2026 (Informe de resultados 2054) · checked 28 Sep 2026
Middle class by the city's yardstick starts at 2.6 million pesos for a family of four, and that is with owned housing.
OfficialIDECBA - Poverty lines and consumer baskets of the City of Buenos Aires, August 2026 (Informe de resultados 2054) · checked 28 Sep 2026
Cartagena
The DANE minimum food basket for Cartagena is 238,308 pesos per person a month, about 953 thousand (285 dollars) for a family of four. Figures for 2025.
OfficialDANE: monetary poverty 2025, presentation of results with poverty lines by city · checked 6 Oct 2026
A family of four in Cartagena counts as poor with income below 2.1 million pesos a month, about 630 dollars (2025). 34.6% of residents are poor, more than in Medellín and Cali.
OfficialDANE: monetary poverty 2025, presentation of results with poverty lines by city · checked 6 Oct 2026
Family and kids
Buenos Aires
Fee ceilings in schools with state support: primary (half-day) 44–224k pesos a month, secondary 55–297k.
SpecialistiProfesional - new fee caps in CABA private schools from September 2026 · checked 28 Sep 2026
Cartagena
Nothing yet
Healthcare
Buenos Aires
With residency, city hospitals are free on equal terms with Argentines. Without a DNI, elective care is paid; emergency care is for everyone.
OfficialResolución 1054/MSGC/2025 - procedure for treating patients without an Argentine DNI in city hospitals · checked 28 Sep 2026
A mid-level plan costs 110–280k pesos a month per person; OSDE 210 cost 285k in September 2026. For a family, multiply.
SpecialistComparison of private health insurance (prepagas) prices, September 2026 · checked 28 Sep 2026
Cartagena
Hospital Serena del Mar of the Santa Fe de Bogotá foundation: in Colombia's top 20 in the Newsweek 2026 ranking and first in Cartagena and the Caribbean region. Over 60 specialties.
SpecialistEl Universal: Hospital Serena del Mar, first in Cartagena in the Newsweek 2026 ranking · checked 6 Oct 2026
Transport
Buenos Aires
The metro is 1,753 pesos per trip, a bus from 888. Fares drop from the 21st trip in a month. A family spends about 127k a month.
OfficialRed SUBE - AMBA public transport fares, in effect from 1 September 2026 · checked 28 Sep 2026
Cartagena
In 2025 about 7.2 million passengers passed through Cartagena airport, 1.7 million of them international. The most popular destinations are Lima, New York, Mexico City, Madrid and Miami.
OfficialAerocivil, open data: commercial air traffic by origin-destination, 2020-2026 · checked 6 Oct 2026
Climate
Buenos Aires
The average July temperature is 11.5 degrees: about 8 at night, about 16 by day. Snow comes once in several generations, but you need heating in winter.
SpecialistClimates to Travel - climate of Buenos Aires, 1991-2020 normals · checked 28 Sep 2026
About 1,260 mm a year and 77 rainy days – there is no dry season. It rains most in summer, winter is the driest. Downpours sometimes cause flooding.
SpecialistClimates to Travel - climate of Buenos Aires, 1991-2020 normals · checked 28 Sep 2026
Cartagena
There is no winter: even in the coolest month, January, it averages 23.6 degrees at night and 30.5 during the day. In June-July, 25.7 at night and 31.6 during the day.
OfficialWMO, World Weather Information Service: climate normals of Cartagena 1971-2000 · checked 6 Oct 2026
About 1,020 mm a year. From December to April it is almost dry (1-35 mm a month), rains from May to November, most of all in October: 235 mm and 16 rainy days.
OfficialWMO, World Weather Information Service: climate normals of Cartagena 1971-2000 · checked 6 Oct 2026
Safety
Buenos Aires
In 2025 there were 2.53 homicides per 100k residents – the lowest since 1995, below the national average (3.7).
OfficialBuenos Aires crime map, summary report for 2025 · checked 28 Sep 2026
Cartagena
According to Ministry of Defense open data, Cartagena had 360 homicides in 2025 and 381 in 2024. In January-August 2026 there were 191, against 244 in the same period of 2025.
OfficialColombian Ministry of Defense, open data: homicides by municipality (HOMICIDIO) · checked 6 Oct 2026
Internet and phone
Buenos Aires
Fibre at 300 Mbps costs about 14–22k pesos a month on promotion, 500 Mbps 22–36k. The main trap: after 6–12 months the list price kicks in, and it is three to four times higher.
SpecialistMovistar Argentina - 300 Mbps fiber plan · checked 28 Sep 2026
Cartagena
Nothing yet
Services
Buenos Aires
Edesur electricity without a subsidy: 157 pesos per kWh plus 3,632 a month (category 151–400 kWh). For 300 kWh about 50.8k pesos without IVA (33 dollars).
OfficialEdesur: cuadro tarifario, ENReGE resolution 535/26, in effect from 1 September 2026 · checked 30 Sep 2026
Metrogas gas without a subsidy: 316 pesos per m³ plus a fixed charge of 4.4–53.8k a month, without taxes. 100 m³ in winter (category R2 2°) – about 47.6k pesos (31 dollars).
OfficialMetrogas: cuadros tarifarios, September 2026 (tariffs for homes without SEF subsidies, excluding taxes) · checked 30 Sep 2026
Without subsidies, electricity, gas and water cost about 142k pesos a month in spring and up to 166k in winter. Expensas (the building fee) are not included in this amount.
SpecialistTN citing the Observatorio de Tarifas y Subsidios IIEP (UBA-CONICET) - AMBA utilities basket, September 2026 · checked 28 Sep 2026
Cartagena
Water with sewerage for 15 m³ at the Aguas de Cartagena tariff: stratum 4 about 136 thousand pesos a month (41 dollars), stratum 5 about 241 thousand, stratum 6 about 289 thousand.
OfficialAguas de Cartagena: water and sewerage tariffs, second half of 2026 · checked 6 Oct 2026
Surtigas piped gas for homes: 2,539 pesos per m³ plus 3,942 pesos a month per bill. 30 m³ comes to about 80 thousand pesos (24 dollars). Strata 5-6 pay 20% more.
OfficialSurtigas: piped gas tariffs for regulated users, September 2026 · checked 6 Oct 2026
Since September 2026 a kWh from Afinia costs 1,033 pesos, the price for stratum 4. 300 kWh a month is about 310 thousand pesos (93 dollars), a typical amount for a family with air conditioning.
SpecialistEl Universal: Afinia's price per kWh rose from 950 to 1,033 pesos from September 2026 · checked 6 Oct 2026

