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5. Slovak Republic
> Avg number of people per household: 2.8 (tie)
> Households without children: 62.8%
> Population: 5,458,827
Source: kirill4mula / iStock Editorial via Getty Images
4. Israel
> Avg number of people per household: 3.3
> Households without children: N/A
> Population: 9,215,100
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3. Costa Rica
> Avg number of people per household: 3.5 (tie)
> Households without children: 30.3%
> Population: 5,094,114
Source: ozgurcankaya / iStock via Getty Images
2. Turkey
> Avg number of people per household: 3.5 (tie)
> Households without children: 45.7%
> Population: 84,339,067
Source: FG Trade / E+ via Getty Images
1. Mexico
> Avg number of people per household: 3.9
> Households without children: 41.3%
> Population: 128,932,753
