Buenos Aires vs Mexico City
Two of the largest cities in the region with different logic for moving. Buenos Aires is through documents and citizenship, Mexico City is through proximity to the US and a big market; compare housing prices, healthcare, and what to expect with the air and earthquakes.
In short
Calculated from the figures below, with no overall “who wins” score.
Rent
✓in Buenos Aires cheaper — −29%
Family budget
≈ about equal≈ $1,060ARS 1,651,798 and ≈ $1,090MX$19,621 per month
Health insurance
✓in Mexico City cheaper — −44%
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 29%Mexico City≈ $854–1,470MX$15,386–26,435Family groceries
per monthBuenos Aires≈ $630ARS 985,617✓Mexico City≈ $569MX$10,250cheaper by 10%Family budget
per monthalmost equalBuenos Aires≈ $1,060ARS 1,651,798Mexico City≈ $1,090MX$19,621Internet
per month✓Buenos Aires≈ $8.95–23ARS 13,999–35,774cheaper by 68%Mexico City≈ $22–78MX$389–1,399Private school
per month✓Buenos Aires≈ $28–190ARS 44,300–296,700cheaper by 79%Mexico City≈ $222–832MX$4,000 – 15kHealth insurance
per monthBuenos Aires≈ $70–179ARS 110–280k✓Mexico City≈ $41–98MX$742–1,775cheaper by 44%Winter
averageBuenos Aires12 °C12 °CMexico City6–21 °C6–21 °CPrecipitation
per yearBuenos Aires1,260 mm1,260 mmMexico City816 mm816 mmReady-made house
purchase✓Buenos Aires$151–200k$151–200kcheaper by 8%Mexico City≈ $190kMX$3.42M
By topic
A quick look at each city. Details and sources are on the city page.
Housing
Buenos Aires
A building maintenance fee: on average 337k pesos a month, on top of rent. For a three-room flat in Palermo, about 300k.
SpecialistLa Nacion: expensas in Buenos Aires, ConsorcioAbierto data on ~13,000 buildings · checked 28 Sep 2026
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
Mexico City
Two-bedroom: Cuauhtémoc (Roma, Condesa) 26.4k pesos, Miguel Hidalgo (Polanco) 26.4k, Benito Juárez (Del Valle, Narvarte) 19.4k, Coyoacán 15.4k. Data from October 2025.
SpecialistInmuebles24: Mexico City sales and rental index, October 2025 · checked 30 Sep 2026
Two-bedroom, agency estimates: Condesa 18–28k pesos, Roma 16–25, Polanco 25–45, Del Valle 12–20, Narvarte 10–16, Coyoacán 11–18. The estimate is approximate.
SpecialistHolaNeo: best neighborhoods for renting in Mexico City, 2026 · checked 30 Sep 2026
A typical 65 m² two-bedroom in Mexico City costs 3.42 million pesos, a 100 m² three-bedroom 4.64 million. By alcaldía, a square metre runs from 37.8k (Coyoacán) to 68.5k (Polanco). October 2025.
SpecialistInmuebles24: Mexico City sales and rental index, October 2025 · checked 30 Sep 2026
Ready-built apartments in Del Valle are about 52.8k pesos per m², in Narvarte about 53.2k. One portal lists new builds in Del Valle Centro at 91k. Agency surveys.
SpecialistHome del Valle: prices per square meter in Del Valle, September 2026 · checked 30 Sep 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
Mexico City
The INEGI food basket for cities is 2,562.58 pesos per person a month, 10,250 for a family of four (August 2026). It is a minimum of food, not an actual receipt.
OfficialINEGI: income poverty lines, August 2026 (bulletin 592/26) · checked 30 Sep 2026
The INEGI poverty line for cities is 4,905.33 pesos per person, 19,621 a month for a family of four (August 2026). It is a lower threshold without rent, not a real budget.
OfficialINEGI: income poverty lines, August 2026 (bulletin 592/26) · checked 30 Sep 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
Mexico City
A private school in Mexico City is most often 4,000–15,000 pesos a month, international ones from 25,000. One school as an example: kindergarten 3,620, primary 4,110 a month. Plus an entry fee.
SpecialistMicole: how much a private school costs in Mexico City · checked 30 Sep 2026
Healthcare
Buenos Aires
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
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
Mexico City
Voluntary IMSS insurance costs 8,900–21,300 pesos a year per person (742 to 1,775 a month). These are 2025 rates; for 2026 the press reports 9,300–22,150.
OfficialIMSS: Seguro de Salud para la Familia, voluntary insurance · checked 30 Sep 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
Mexico City
Metro 5 pesos, Metrobús 6, the Metrobús airport line 30. The authorities confirmed that in 2026 the metro stays at 5. Minibuses were allowed to raise their fare by 1.5 pesos in 2025.
OfficialMexico City portal: how to ride the Metro and Metrobús, fares · checked 30 Sep 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
Mexico City
January, the coldest month: on average 5.8 degrees at night, 21.2 in the day. No snow, but the nights are cold, and homes usually have no heating.
OfficialWMO, World Weather Information Service: climate normals for Mexico City · checked 30 Sep 2026
About 816 mm a year, almost all of it from June to September (135–175 mm a month). From November to March it is nearly dry: 4–12 mm a month. Series 1951–1980.
OfficialWMO, World Weather Information Service: climate normals for Mexico City · checked 30 Sep 2026
Nature
Buenos Aires
Nothing yet
Mexico City
In 2023 there were 120 clean days out of 365 (all substances within the norm); the other 245 had poor air. Worst from March to June. The 2025 dry season had five ozone alerts.
OfficialSEDEMA: annual air quality report for Mexico City for 2023 · checked 30 Sep 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
Mexico City
Serious crimes per 100k residents, 2025: Cuauhtémoc 616, Miguel Hidalgo 324, Benito Juárez 311, Coyoacán 295. City-wide 274, nationwide 221.
SpecialistConsejo Ciudadano CDMX: high-impact crimes by alcaldía, 2025 · checked 30 Sep 2026
Roma, Condesa and Centro stand on lake-bed ground: shaking there can be up to 50 times stronger. The 2017 earthquake (magnitude 7.1): 228 dead according to Expansión.
OfficialSSN: report on the earthquake of 19 September 2017, Puebla-Morelos, magnitude 7.1 · checked 30 Sep 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
Mexico City
Telmex sells home internet from 120 to 1000 Mbps. Up to 350 Mbps download and upload are the same; on the higher plans upload is lower. Totalplay starts at 100 Mbps.
SpecialistTelmex: Infinitum home packages, valid until 30 September 2026 · checked 30 Sep 2026
From 389 pesos for 120 Mbps to 1399 for a gigabit at Telmex, taxes included. Totalplay is 390 for 100 Mbps. The plan includes calls within Mexico, the US and Canada.
SpecialistTelmex: Infinitum home packages, valid until 30 September 2026 · checked 30 Sep 2026
Services
Buenos Aires
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
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
Mexico City
Tariff 1 for June 2026: 1.125 pesos per kWh up to 75 kWh, 1.369 for the next 65, then 4.004. Above 140 kWh the price almost quadruples. Plus 16% VAT.
SpecialistUnoTV: CFE home tariffs for June 2026 · checked 30 Sep 2026
The Cutzamala system supplies about a quarter of the valley's water. As of 23 September 2026 it is 86% full; in April it was 52%. The shortfall by city district has not been established.
SpecialistExpansión: Cutzamala System fill level as of 17 September 2026 · checked 30 Sep 2026
Price cap for liquefied LP gas (CNE) in Mexico City for 27.09–3.10.2026: 20.10 pesos per kg, 10.85 per litre. A 20 kg cylinder at the cap is about 402 pesos.
OfficialComisión Nacional de Energía: maximum LP gas prices from 27 September to 3 October 2026 · checked 30 Sep 2026
The water bill comes once every two months, the price per m³ rises in steps and depends on the neighbourhood's development index: a subsidy of up to 91% in poor areas, about 60% in rich ones. We did not find the price in pesos.
SpecialistGrupo Animal: water tariffs and payment in Mexico City, how the tariff works under the Código Fiscal · checked 30 Sep 2026