What $400K Buys in Cobb County, GA
A $400K budget buys a very different house depending on which Cobb County city you point it at. This page compares every city with at least five active listings within 10% of $400K — size, age, bed and bath count, price per square foot, how much of the inventory is new construction and how long it has been sitting — from today’s live MLS actives, and lists the communities with the most homes at that price. It refreshes every night.
There are 519 homes for sale in Cobb County, GA priced between $360,000 and $440,000 right now. At $400K, the typical home is 2,037 sq ft, built 1999, at $195/sq ft; 13% of them are new construction and the median has been on the market 37 days. The most house for the money is in Austell (2,214 sq ft median); the least in Atlanta (1,659 sq ft); the newest in Mableton (median build year 2022).
What $400K buys, city by city
| City | Homes for sale | Median sq ft | Beds / baths | Median year built | $ / sq ft | New construction | Median DOM |
|---|---|---|---|---|---|---|---|
| Marietta | 173 | 2,032 | 3 / 2.5 | 1987 | $200 | 5% | 36 |
| Kennesaw | 77 | 2,157 | 3 / 2.5 | 1996 | $184 | 1% | 29 |
| Acworth | 67 | 2,033 | 3 / 2.5 | 1999 | $194 | 21% | 42 |
| Mableton | 59 | 1,977 | 3 / 3 | 2022 | $194 | 44% | 49 |
| Powder Springs | 57 | 2,165 | 4 / 2.5 | 2000 | $181 | 14% | 39 |
| Smyrna | 49 | 1,980 | 3 / 2.5 | 2002 | $197 | 0% | 28 |
| Austell | 20 | 2,214 | 4 / 2.5 | 2013 | $184 | 35% | 33 |
| Atlanta | 15 | 1,659 | 2 / 2 | 2003 | $241 | 0% | 61 |
By ZIP code: where $400K goes furthest
The same budget by ZIP — useful where one city covers most of the county.
| ZIP | Homes for sale | Median sq ft | Median year built | $ / sq ft | New construction |
|---|---|---|---|---|---|
| 30101 Acworth | 58 | 2,026 | 2000 | $195 | 24% |
| 30127 Powder Springs | 57 | 2,165 | 2000 | $181 | 14% |
| 30144 Kennesaw | 54 | 2,225 | 1997 | $184 | 2% |
| 30126 Mableton | 53 | 1,977 | 2020 | $196 | 38% |
| 30064 Marietta | 47 | 2,149 | 1988 | $192 | 17% |
| 30066 Marietta | 39 | 1,987 | 1985 | $201 | 0% |
| 30082 Smyrna | 27 | 2,127 | 2000 | $187 | 0% |
| 30062 Marietta | 25 | 1,902 | 1979 | $215 | 0% |
| 30008 Marietta | 24 | 2,286 | 1996 | $173 | 0% |
| 30152 Kennesaw | 23 | 2,074 | 1993 | $184 | 0% |
| 30080 Smyrna | 22 | 1,795 | 2006 | $228 | 0% |
| 30060 Marietta | 21 | 1,884 | 2003 | $204 | 0% |
Communities with the most homes near $400K
| Community | City | Homes for sale near $400K | Median sq ft | Median year built |
|---|---|---|---|---|
| Rosewood Farms | Acworth | 17 | 2,082 | 2026 |
| Mableton Station | Mableton | 16 | 1,977 | 2026 |
| Barrett Cove | Marietta | 7 | 2,026 | 2026 |
| Park Center Pointe | Mableton | 6 | 1,979 | 2026 |
| Liberty Commons | Kennesaw | 5 | 1,518 | 2001 |
| Milford Chase | Marietta | 5 | 2,648 | 1988 |
| Baker Plantation | Acworth | 4 | 1,745 | 1996 |
| Views at Park Avenue | Smyrna | 4 | 2,047 | 2008 |
| Horseshoe Bend | Roswell | 4 | 2,766 | 1981 |
| Lake Park | Acworth | 4 | 1,734 | 1998 |
| Barnes Mill | Smyrna | 4 | 2,055 | 2007 |
| Stilesboro Cove | Kennesaw | 3 | 1,708 | 1985 |
| Crabapple Cove | Powder Springs | 3 | 2,677 | 1989 |
| Homesite | Marietta | 3 | 1,897 | 1957 |
| White Oak Preserve | Smyrna | 3 | 2,000 | 2015 |
How to read this
Counts and medians are computed from active MLS listings priced within 10% of $400K ($360,000–$440,000) as of October 24, 2026; property mix at this price: Single-family 68%, Townhouse 28%, Condo 4%. Cities with fewer than five listings in the band are folded out of the city table but still count in the county total. Prices are asking prices, not closings — see the county page for sale-to-list ratios. Source: live MLS feeds compiled by Momentum Research. Other budgets in Cobb County: $300K, $500K, $750K, $1M. Back to homes for sale in Cobb County, GA.