0. Short answer: homes count as assets, but the KRW 41.12 million savings median is not a home value
Put savings figures for Japan, China, South Korea and the United States next to each other and South Korea jumps out.
The natural reaction is: “Wait, do Koreans save that much? Do they simply earn a lot more? Or is the number huge because people bought homes and the homes are counted as assets?”
The answer is: partly yes, partly no.
A purchased home is counted as a real asset in South Korea’s household wealth statistics, so housing can make total assets look large. But in the 2024 Household Finance and Welfare Survey, households whose head was aged 30–39 had an average “savings amount” of KRW 70.79 million and a median of KRW 41.12 million. The home itself is not included in that savings figure.[1]
So “housing boosts total assets” is correct. “The KRW 41.12 million savings median is just the value of the house” is not.
There is another catch: this is a household statistic, not an individual 30-something’s bank balance.
1. “Savings” does not mean the same thing in every country
A rough comparison looks like this:
| Country | Age group | Mean | Median | What is measured |
|---|---|---|---|---|
| Japan | 20s, single-person household | JPY 2.55m financial assets | JPY 0.37m | Deposits, stocks, funds, etc. |
| Japan | 30s, single-person household | JPY 5.01m | JPY 1.00m | Same definition |
| South Korea | Household head 29 or younger | KRW 34.00m savings | KRW 18.90m | Broad savings category |
| South Korea | Household head 30–39 | KRW 70.79m | KRW 41.12m | Broad savings category |
| United States | Family head under 35 | USD 20,540 | USD 5,400 | Transaction accounts |
| United States | Family head 35–44 | USD 41,540 | USD 7,500 | Transaction accounts |
| China | Household head 34 or younger | CNY 58,172 average deposits | Not verified | Deposit-account balance, 2019 |
| China | Household head 35–44 | CNY 51,240 | Not verified | Same |
These are not identical races with different finish times. They are different events.
Japan’s figure is financial assets of single-person households. South Korea uses household-head age and a broad savings concept. The U.S. figure is transaction-account money. The Chinese figure is a deposit-account average.
A single English word such as “savings” can hide several statistical products.
2. South Korea’s “savings amount” is much broader than cash in a bank
The Korean category 저축액 includes more than cash and ordinary deposits. The official classification includes installment and time deposits, funds, savings-type insurance, stocks, bonds, futures and options, among other items.[1][2]
So a median of KRW 41.12 million does not mean the typical household has that amount sitting in a checking account.
There is also a separate housing-related component: jeonse and monthly-rent deposits.
For households headed by someone aged 30–39 in 2024, average financial assets were KRW 141.71 million. Average savings were KRW 70.79 million and average rental deposits were KRW 70.92 million.[1]
Housing is therefore visible even before we get to owner-occupied homes.
3. But Korean households in their 30s still hold substantial financial assets
It would also be wrong to explain the whole gap away as a definition trick.
In 2024, households headed by people aged 30–39 had:
- Savings: mean KRW 70.79m, median KRW 41.12m
- Deposit/investment-type savings: mean KRW 66.71m, median KRW 40.00m
- Total financial assets: mean KRW 141.71m, median KRW 83.60m
Those are meaningful balances even before owner-occupied housing is added.[1]
But the unit is a household. A married dual-income household and a one-person household can sit in the same age group.
Comparing that directly with a Japanese single person in their 30s is not apples-to-apples.
4. Does a home count as an asset? Yes—and it matters a lot
South Korea divides household assets into financial assets and real assets. Real assets include real estate, including the household’s own residence.[1][2]
Among households headed by someone aged 30–39 in 2024:
- Average real assets: KRW 220.04m
- Share owning a residence: 35.4%
- Median value of the residence among owners: KRW 340m
- Average residence value across all households in the group: KRW 141.10m
So yes: buying a home can increase the reported gross-asset figure dramatically.
Mortgage debt is recorded separately as debt, which is why gross assets should not be confused with net worth.
5. Jeonse deposits are not homes, but they are not freely spendable cash either
South Korea has another wrinkle: large rental deposits, especially under jeonse-style arrangements.
These deposits are classified as financial assets.[1][2]
In 2024, 58.1% of households headed by people aged 30–39 held a rental deposit; the median among holders was KRW 87m.[1]
That means a large financial-asset number does not necessarily mean a household has the same amount available for a spontaneous purchase tomorrow.
Housing appears on both sides of the Korean household balance sheet: as owned property for owners and as large deposits for many renters.
6. “Do Koreans in their 30s earn a lot?” Household income is indeed substantial—but it is household income
In the same 2024 survey, 2023 annual income for households headed by someone aged 30–39 was:
- Mean household income: KRW 71.99m
- Median household income: KRW 61.75m
- Mean disposable income: KRW 58.38m
- Median disposable income: KRW 50.79m.[1]
A public time series for young households shows the 2025 survey at KRW 73.86m mean household income and KRW 62.19m median for the 30–39 group.[3]
So it is reasonable to say the household-income number looks high.
But it is not the average salary of one Korean worker in their 30s. Household income can include a spouse’s wages, business income and other sources.
Turning a household number into a personal salary headline is how a statistic leaves home and comes back wearing somebody else’s name tag.
7. Japan’s “almost nobody in their 30s has JPY 10 million” claim is also too strong
J-FLEC’s 2025 survey puts financial assets for Japanese single-person households in their 30s at:
- Mean: JPY 5.01m
- Median: JPY 1.00m
- Average deposits: JPY 2.37m.[4]
The median makes JPY 10 million sound extremely rare. The distribution says otherwise.
The shares at JPY 10 million or more are 5.5% at 10–15m, 4.3% at 15–20m, 2.5% at 20–30m and 3.4% at 30m or more: 15.7% in total.
That is roughly one in six to seven single-person households in their 30s.
It is a minority, but not a mythical creature.
JPY 4 million or more is roughly the top 27% using the published brackets, so calling JPY 4 million “fairly high” is much closer to reality.
8. China and the United States come with their own definition traps
The latest comprehensive U.S. Survey of Consumer Finances currently available is the 2022 survey.[5]
For families headed by someone under 35, transaction accounts averaged USD 20,540 with a median of USD 5,400. For ages 35–44, the mean was USD 41,540 and the median USD 7,500.
Transaction accounts include checking, savings, money-market and similar accounts. They are not total wealth.
China is harder to compare. A study using CHFS 2019 data reports average deposit-account balances of CNY 58,172 for households with heads aged 34 or younger and CNY 51,240 for ages 35–44.[6]
A matching age-group median could not be verified in the public material used here.
CHFS officially provides research access to data through 2021, while the 2023 and 2025 waves were not yet publicly released as of the latest official access notice.[7]
When a comparable median is unavailable, leaving the cell blank is better than manufacturing precision.
9. Bottom line: South Korea really does show large numbers, but it is not “house value disguised as savings”
So:
“Do Korean households in their 30s earn a lot?”
Household-income figures are substantial, yes—but they are not individual salaries.
“Does buying a home increase assets?”
Absolutely. Owner-occupied housing is part of real assets.
“Is the KRW 41.12m savings median simply the house value?”
No. The home is outside that savings category.
“Does that mean KRW 41.12m is all bank cash?”
Also no. The Korean savings category includes investments and insurance products as well.
The accurate takeaway is that Korean households headed by people in their 30s hold sizeable financial assets even before owned housing is counted, but direct comparison with a Japanese single-person household is misleading. Total assets are heavily influenced by housing, and financial assets can also be heavily influenced by rental deposits.
The useful question is not merely “Which country saves more?”
It is: “What exactly did this survey put inside the box called savings?”
Sources
https://www.j-flec.go.jp/data/kakekin_2025/
https://www.kostat.go.kr/boardDownload.es?bid=215&list_no=434107&seq=4
https://www.mods.go.kr/board.es?act=view&bid=215&list_no=439535&mid=a10301040300
https://www.federalreserve.gov/econres/scfindex.htm
https://oss.aisixiang.com/download/314218a078a3beadefc8968e60daab77.pdf
https://chfs.swufe.edu.cn/sjzx/sjsq.htm
References (7)
- Ministry of Data and Statistics / Bank of Korea / Financial Supervisory Service, 2024 Household Finance and Welfare Survey
- 2025 Household Finance and Welfare Survey, classification and latest overview
- Korea national indicator, young-household income
- J-FLEC, Household Financial Behavior Survey 2025
- U.S. Federal Reserve, Survey of Consumer Finances 2022
- Age-based financial-asset analysis using CHFS 2019
- China Household Finance Survey and Research Center, data access information
