Updated September 2026. Part of our farms, land and acreage series.
Oldham and Shelby get the attention. Bullitt and Spencer get the value. South and southeast of Louisville, these two counties offer the most affordable acreage within commuting range of the city, and they are not the same place. Bullitt is a logistics and distillery county with I-65 running down its spine, Bernheim Forest's 16,000 acres in the middle, and the best airport access in the metro. Spencer is a quiet lake county with no interstate at all, the fastest population growth of the four exurban counties, the lowest property tax rate, and a per-acre land market so consistent it's almost boring. Together they answer the question a lot of Louisville buyers eventually ask: where can I get twenty acres without a seven-figure budget?
Bullitt County
The lay of the land
About 86,000 people as of mid-2025, up 5.1% since 2020, on 297 square miles. Mount Washington, in the northeast corner along KY 44, is the largest city at around 18,000 and nearly doubled between 2010 and 2020. Shepherdsville, the county seat, sits on I-65 at exit 117. Hillview borders Jefferson County on Preston Highway. Lebanon Junction is at the south end at exit 105. Fort Knox occupies the western fifth of the county. Clermont, at exit 112, is home to both Bernheim Arboretum and Research Forest and the Jim Beam distillery, which together drove $173 million in tourism spending in 2025.
The county's economy is distribution: more than six million square feet of warehouse and logistics space has been absorbed since 2000, Averitt Express announced a $113 million regional campus in May 2026, and UofL Health's South Hospital at exit 121 opened a $25 million Brown Cancer Center in September 2026. That gives Bullitt something Oldham and Spencer don't have: a lot of jobs inside the county line.
The market
GLAR's August 2026 single-family median was $320,000 with 3.6 months of supply and inventory up 44% year over year, the loosest market of the four counties. Homes on five or more acres sold at a median of roughly $475,000 over the past year, with the top of the market at $1.48 million for 5.3 acres in Shepherdsville and $1.05 million for 122 acres. Land pricing has two tiers: large or rugged tracts in the knobs at $6,000 to $9,000 an acre (68 acres on West Laurel River Road at $400,000; 31 acres on Horsefly Hollow at $290,000), and five-to-nine-acre building lots near Shepherdsville and Mount Washington at $33,000 to $66,000 an acre.
Commute
Bullitt's advantage is the airport and UPS Worldport. Hillview is 11 miles and about 21 minutes from SDF; Shepherdsville 16 miles and 24 minutes; Mount Washington 20 miles and 32. Downtown Louisville is 26 to 37 minutes from most of the county. Mount Washington to Baptist Health Louisville on Kresge Way is 16 miles and 28 minutes via the Gene Snyder, which makes the northeast corner of the county a legitimate option for east-end hospital commuters who want more land than Jefferson County allows.
Zoning, and a warning
Bullitt's zoning regulations date to April 1987 with piecemeal amendments, and the county put a full rewrite out for bid in May 2025 to conform to its 2045 comprehensive plan. Under the current text, the Agricultural zone permits farm dwellings at two acres per dwelling but prohibits dividing land into residential lots under ten acres; agricultural use itself is defined at ten acres. The Conservation zone allows one-acre home sites but no divisions under three acres. Stream Valley Reserve requires ten acres for any building and bans permanent development within 150 feet of the high-water line. Because the code is being rewritten, confirm current lot minimums with the Joint Planning Commission in Shepherdsville before relying on any of this, and expect the rules to change during 2026 or 2027.
Schools and taxes
Bullitt County Public Schools serves about 13,000 students across 25 schools and carries a B-minus from Niche with a 93% graduation rate. Unincorporated property with a standard ten-cent fire district taxed at about $1.14 per $100 in 2025 (10.6 state, 17.5 county-wide, 75.7 school, 10 fire); the Mount Washington fire district is 20 cents, pushing that area to about $1.24. Mount Washington's city rate adds 8.7 cents, Shepherdsville 11.6.
Spencer County
The lay of the land
About 21,000 people as of mid-2025, up 8.1% since 2020, which put Spencer among the five fastest-growing counties in Kentucky by percentage. Taylorsville is the only city and the county seat, at the junction of KY 44, KY 55, and KY 155. Mount Eden, Elk Creek, Little Mount, and Waterford are the crossroads communities. There is no interstate; KY 155 (Taylorsville Road) runs straight into Jeffersontown and the Gene Snyder, KY 44 connects west to Mount Washington and I-65, and KY 55 runs north to Shelbyville and I-64.
Taylorsville Lake defines the county: a 3,050-acre Army Corps reservoir on the Salt River with 75 miles of shoreline, described by the state as its most heavily stocked lake, and a 1,625-acre state park on the north shore with a 24-mile multi-use trail system and a dedicated horse campground. That trail system is why Spencer has a pleasure-horse culture of its own: about 1,000 horses on 210 operations, mostly Quarter Horses, Walking Horses, and Arabians.
The market
GLAR's year-to-date single-family median through August 2026 was $435,000, up 3.6%, the second-highest in the metro after Oldham, on a small sample (145 sales). Homes on five or more acres sold at a median around $450,000 over the past year, with a $2 million sale of 335 acres at the top. The land market is the most consistent of the four counties: ten-to-125-acre tracts asking $12,000 to $25,000 an acre almost across the board (124 acres on Elk Creek Road at about $13,400 an acre; 20.6 acres on Mike Brown Lane at about $19,300; ten acres at $225,000), with small six-acre lots up to about $45,000. For genuine farm acreage within forty minutes of downtown, this is the best per-acre value in the metro.
Commute
This is Spencer's cost. Taylorsville to downtown Louisville is 34 miles and about 44 minutes; to Baptist Health Louisville, 25 miles and 37 minutes; to Norton Brownsboro, 28 miles and 35 minutes. Mount Eden pushes past an hour. The western end of the county along Elk Creek and toward Fisherville, in the 40023 and 40071 ZIP codes, is materially closer to everything, and that's where the estate-style acreage concentrates. Spencer's mean commute of nearly 33 minutes is the longest of the four counties. UofL Health opened an urgent care and primary care office in Taylorsville in 2025; the county is otherwise designated medically underserved, so plan on driving for specialists.
Zoning: the clearest rules in the region
Spencer's regulations are recent (the agricultural article was revised March 2025) and unusually specific. A-1 Agricultural requires ten acres with a 50-foot road frontage; A-2 Agricultural requires five acres and is written expressly for low-density residential in rural areas. Agricultural buildings are exempt from permits and setbacks by affidavit. And R-1 Single Family, at a one-acre minimum, explicitly allows livestock and poultry at no more than one livestock animal or twelve poultry per acre, housed at least 100 feet from any neighboring dwelling, outside Taylorsville's city limits. No other county in the region spells out small-lot animal rules that cleanly, which makes Spencer the easiest place to run a two-acre homestead without a zoning fight. The ordinance also cites the county's karst geology, sinkholes and losing streams, as a reason to limit density, which is a fair warning about septic siting on some tracts.
Schools and taxes
Spencer County Public Schools serves about 3,300 students with one high school and carries a B from Niche, ranked 39th of 158 Kentucky districts, the second-strongest rating of the four exurban counties after Oldham. The tax rate is the lowest: about 96.5 cents per $100 for unincorporated property in 2025 (10.6 state, 18.8 county-wide, 60.1 school, 7 fire), roughly 27 cents below Oldham and about equal to suburban Jefferson County before fire districts. On a $600,000 property that's about $5,790 a year versus roughly $7,380 in Oldham. Taylorsville adds 11.6 cents. Septic runs through the North Central District Health Department, $250 for the site evaluation and $250 for the permit.
Choosing between them
Bullitt is for the buyer whose commute points south or to the airport, who wants a jobs base and a hospital in the county, and who will trade a looser, more suburban feel for the lowest entry price on small acreage. It's also the county to watch on zoning; the 2045 plan and the code rewrite could open or close options. Spencer is for the buyer who wants the lake, the trails, real farm acreage at a predictable price, the region's clearest small-lot livestock rules, and the lowest tax bill, and who is honest with themselves about a 45-minute drive. Both counties reward buying on the side closest to Louisville: northeast Bullitt around Mount Washington, western Spencer toward Fisherville.
If you're comparing against Oldham and Shelby, the hub page has the side-by-side. If the plan is chickens and a garden rather than cattle, the homestead guide goes deeper on the small-lot rules. And when you want to look at parcels, schedule a call.
Frequently asked questions
Which county near Louisville has the cheapest land?
Bullitt County for large or rugged tracts, at $6,000 to $9,000 per acre in the knobs, and Spencer County for consistent farm acreage at $12,000 to $25,000 per acre. Both are well below Oldham's $45,000-plus building tracts and western Shelby's $45,000 to $60,000.
Can I keep chickens or livestock on a small lot in Spencer County?
Yes, outside Taylorsville city limits. Spencer's R-1 zone allows up to one livestock animal or twelve poultry per acre on one-acre-minimum lots, housed at least 100 feet from a neighboring dwelling, with no commercial breeding. A-2 requires five acres and A-1 ten.
What is the minimum lot size in Bullitt County's agricultural zone?
Under the current 1987 regulations, no residential division under ten acres is permitted in the A zone, though farm dwellings may be placed at two acres per dwelling on existing tracts. The county is rewriting its zoning code; confirm with the Joint Planning Commission before relying on any minimum.
How far is Taylorsville from Louisville?
About 34 miles and 44 minutes to downtown in light traffic via KY 155, 37 minutes to Baptist Health Louisville, and 35 minutes to Norton Brownsboro. The western end of the county near Elk Creek and Fisherville is ten to fifteen minutes closer.
Which exurban county has the lowest property taxes?
Spencer, at about 96.5 cents per $100 for unincorporated property in 2025, thanks to the lowest school rate in the region at 60.1 cents. Bullitt is about $1.14 with a standard fire district, or $1.24 in the Mount Washington fire district.
Is Bullitt County a good option for airport or UPS commuters?
The best of the four exurban counties. Hillview is about 21 minutes from Louisville's airport, Shepherdsville 24, and Mount Washington 32, all via I-65 or the Gene Snyder. Mount Washington also reaches the Baptist East medical corridor in under 30 minutes.