Waukesha County

Waukesha County is, by the numbers, an appreciation play sitting near the unfavorable end of the cash-flow spectrum. The median home price of $494,695 against a median rent of $1,675 produces a gross rent-to-price ratio of 4.06%, which is low enough to tell you immediately that the market is pricing in future gains, not current income. The modeled cap rate of 2.64% confirms that: you are buying a dollar of net operating income at roughly 38 times, a multiple that makes sense only if you believe the asset will keep appreciating. The county's 5.53% year-over-year home price gain supports that belief for now, and the appreciation score of 88 out of 100 puts Waukesha near the top of the range nationally on that dimension. The cash-flow score of 31, however, is equally telling. At a 6.85% rate on a 20% down purchase, the modeled monthly mortgage alone is $2,593 before any operating costs, against $1,675 in rent. The result is a projected cash flow of negative $1,504 per month and a cash-on-cash return of negative 15.86%. That is not a rounding error; it is a structural feature of this market at current prices and rates.

The investor this market suits is someone buying for long-term appreciation and balance-sheet growth, not monthly income. A cash-flow buyer using conventional financing has no realistic path to positive returns at the median price point. Even a value-add operator faces the same arithmetic ceiling: you can force some rent appreciation through renovation, but you cannot renovate your way to a 4.06% gross yield market into a 7% or 8% gross yield market. The affordability index of 57 and median household income of $101,639 suggest the resident base is relatively affluent, which supports rent stability and low credit risk among tenants, but it does not fix the yield problem. The appreciation buyer, particularly one with a longer hold horizon of seven to ten years and who can tolerate negative carry, is the natural fit. The 88 appreciation score and 5.53% annual price growth give that buyer something to underwrite.

The tax and insurance picture meaningfully worsens the carry analysis and deserves its own line on your underwrite. Using the Tax Foundation 2024 state-average effective rate of 1.85%, annual property tax on a $494,695 purchase comes to approximately $9,152, and annual insurance at 0.23% adds another $1,138. Together that is $858 per month before you pay a mortgage, manage the property, or handle any maintenance. At a 1.85% rate, Wisconsin's state average is high enough to be a material underwriting consideration, and the propertyTaxFlag here is flagged as high for good reason. Note that this is a state-average estimate; actual Waukesha County and township rates may differ, so pull the specific parcel's tax history before closing. The $858 monthly tax-and-insurance figure is already baked into the $586 estimated monthly expense figure alongside other operating costs, but investors accustomed to lower-tax states should not normalize past it.

Compared to its neighbors, Waukesha is the most expensive county in the peer set and carries the lowest gross rent-to-price ratio of any neighbor with rent data available. Ozaukee County to the north has a median price of $470,334 and a rent-to-price ratio of 4.54%, meaningfully better yield on a slightly lower buy-in. Dane County, anchored by Madison, comes in at $448,398 with a 4.86% ratio, giving up less on the yield side while still offering a well-documented employment base. Saint Croix County, in the western part of the state, is the outlier in the peer group: median price of $401,930 and a rent-to-price ratio of 5.14%, the highest of any neighbor listed, which at least begins to approach a workable gross yield. Brown County has the lowest price point at $336,447 but also the lowest rent-to-price ratio at 3.89%, so cheap does not mean better cash flow there. All five neighbors carry the same overall score of 55, or 56 in Saint Croix's case, so there is no magic alternative in the immediate region. An investor should choose Waukesha specifically when the thesis is appreciation and demographic stability in the Milwaukee metropolitan orbit, and they are comfortable with negative carry. If positive or near-neutral cash flow is required from day one, Saint Croix or Dane County offer better starting yields, and the investor should run those numbers first.